diff --git a/pkg_client/src/components/PopulateForm.tsx b/pkg_client/src/components/PopulateForm.tsx
index 63c5af2..b04d55c 100644
--- a/pkg_client/src/components/PopulateForm.tsx
+++ b/pkg_client/src/components/PopulateForm.tsx
@@ -1,28 +1,11 @@
 import Container from "react-bootstrap/esm/Container";
-import Col from "react-bootstrap/esm/Col";
-import Row from "react-bootstrap/esm/Row";
-import Tab from "react-bootstrap/Tab";
-import Nav from "react-bootstrap/Nav";
 import StatementPopulationForm from "./StatementPopulationForm";
-import PreferencePopulationForm from "./PreferencePopulationForm";
-
-export interface Concept {
-  description: string;
-  related_entities: string[];
-  broader_entities: string[];
-  narrower_entities: string[];
-}
-
-export interface TripleElement {
-  value: string | Concept;
-}
 
 const PopulateForm = () => {
   return (
     <Container>
       <p>
-        Complete the corresponding form to either add a statement or a
-        preference.{" "}
+        Complete the corresponding form to either add or delete a statement.{" "}
         <b>
           It is assumed that you are familiar with the{" "}
           <a href="https://iai-group.github.io/pkg-vocabulary/" target="blank">
@@ -35,32 +18,10 @@ const PopulateForm = () => {
         By default the annotations are URIs but if they are not available, you
         can use concepts instead.
       </p>
-      <Tab.Container id="left-tabs-example" defaultActiveKey="first">
-        <Row>
-          <Col sm={3}>
-            <Nav variant="pills" className="flex-column">
-              <Nav.Item>
-                <Nav.Link eventKey="first">Statement</Nav.Link>
-              </Nav.Item>
-              <Nav.Item>
-                <Nav.Link eventKey="second">Preference</Nav.Link>
-              </Nav.Item>
-            </Nav>
-          </Col>
-          <Col sm={9}>
-            <Tab.Content>
-              {/* TODO: Add section to manage access rights of services
+
+      {/* TODO: Add section to manage access rights of services
               See issue: https://github.com/iai-group/pkg-api/issues/66 */}
-              <Tab.Pane eventKey="first">
-                <StatementPopulationForm />
-              </Tab.Pane>
-              <Tab.Pane eventKey="second">
-                <PreferencePopulationForm />
-              </Tab.Pane>
-            </Tab.Content>
-          </Col>
-        </Row>
-      </Tab.Container>
+      <StatementPopulationForm />
     </Container>
   );
 };
diff --git a/pkg_client/src/components/PreferencePopulationForm.tsx b/pkg_client/src/components/PreferencePopulationForm.tsx
deleted file mode 100644
index eb38542..0000000
--- a/pkg_client/src/components/PreferencePopulationForm.tsx
+++ /dev/null
@@ -1,278 +0,0 @@
-import { useContext, useState } from "react";
-import { UserContext } from "../contexts/UserContext";
-import Form from "react-bootstrap/Form";
-import Button from "react-bootstrap/Button";
-import { TripleElement } from "./PopulateForm";
-import { Alert } from "react-bootstrap";
-import axios from "axios";
-
-const PreferencePopulationForm = () => {
-  const { user } = useContext(UserContext);
-  const [error, setError] = useState("");
-  const [info, setInfo] = useState("");
-  const [subject, setSubject] = useState("");
-  const [objectSwitch, setObjectSwitch] = useState(false);
-  const [object, setObject] = useState<TripleElement>({
-    value: "",
-  });
-  const [prefValue, setPrefValue] = useState(Number.NaN);
-  const [statementID, setStatementID] = useState("");
-  const baseURL =
-    (window as any)["PKG_API_BASE_URL"] || "http://127.0.0.1:5000";
-
-  const addPreference = () => {
-    if (!subject) {
-      setError("Please fill the required field: Subject.");
-      return;
-    }
-    if (isNaN(prefValue)) {
-      setError("Please fill the required field: Preference value.");
-      return;
-    }
-    if (typeof object.value === "string" && object.value === "") {
-      setError("Please fill the required field: Object.");
-      return;
-    } else if (
-      typeof object.value !== "string" &&
-      object.value.description === ""
-    ) {
-      setError("Please fill the required field: Object description.");
-      return;
-    }
-    // Axios sent POST request with body
-    axios
-      .post(`${baseURL}/preference`, {
-        owner_uri: user?.uri,
-        owner_username: user?.username,
-        subject: subject,
-        object: object.value,
-        preference: prefValue,
-        statementID: statementID,
-      })
-      .then((response) => {
-        setError("");
-        setInfo(response.data.message);
-      })
-      .catch((error) => {
-        setError(error.response.data.message);
-        setInfo("");
-      });
-  };
-
-  return (
-    <>
-      {error && <Alert variant="danger">{error}</Alert>}
-      {info && <Alert variant="info">{info}</Alert>}
-      <Form>
-        <Form.Group className="mb-3">
-          <Form.Label>
-            <i>Subject</i>
-          </Form.Label>
-          <Form.Check
-            type="switch"
-            id="custom-switch"
-            label="Me"
-            onChange={(e) => {
-              if (e.target.checked) {
-                setSubject(user?.uri || "");
-                // Disable the input
-                (
-                  document.getElementById("inputSubjectURI") as HTMLInputElement
-                ).disabled = true;
-                document
-                  .getElementById("inputSubjectURI")
-                  ?.setAttribute("placeholder", user?.uri || "");
-              } else {
-                setSubject("");
-                // Enable the input
-                (
-                  document.getElementById("inputSubjectURI") as HTMLInputElement
-                ).disabled = false;
-                document
-                  .getElementById("inputSubjectURI")
-                  ?.setAttribute("placeholder", "Enter subject URI");
-              }
-            }}
-          />
-          <Form.Control
-            type="text"
-            placeholder="Enter subject URI"
-            onChange={(e) => setSubject(e.target.value)}
-          />
-        </Form.Group>
-        <Form.Group className="mb-3">
-          <Form.Label>
-            <i>Object</i>
-          </Form.Label>
-          <Form.Check
-            type="switch"
-            label="Concept"
-            id="object-switch"
-            checked={objectSwitch}
-            onChange={(e) => {
-              setObjectSwitch(e.target.checked);
-            }}
-          />
-          {!objectSwitch && (
-            <Form.Control
-              type="text"
-              onChange={(e) => setObject({ value: e.target.value })}
-            />
-          )}
-          {objectSwitch && (
-            <>
-              <Form.Control
-                type="text"
-                placeholder="Enter concept description"
-                id="object-description"
-                onChange={(e) => {
-                  typeof object.value === "string"
-                    ? setObject({
-                        value: {
-                          description: e.target.value,
-                          related_entities: [],
-                          broader_entities: [],
-                          narrower_entities: [],
-                        },
-                      })
-                    : setObject({
-                        value: {
-                          description: e.target.value,
-                          related_entities:
-                            object?.value?.related_entities || [],
-                          broader_entities:
-                            object?.value?.broader_entities || [],
-                          narrower_entities:
-                            object?.value?.narrower_entities || [],
-                        },
-                      });
-                }}
-              />
-              <Form.Control
-                type="text"
-                placeholder="Enter concept related entities"
-                id="object-related"
-                onChange={(e) => {
-                  typeof object.value === "string"
-                    ? setObject({
-                        value: {
-                          description: "",
-                          related_entities: e.target.value
-                            .split(",")
-                            .map((e) => e.trim()),
-                          broader_entities: [],
-                          narrower_entities: [],
-                        },
-                      })
-                    : setObject({
-                        value: {
-                          description: object?.value?.description || "",
-                          related_entities: e.target.value
-                            .split(",")
-                            .map((e) => e.trim()),
-                          broader_entities:
-                            object?.value?.broader_entities || [],
-                          narrower_entities:
-                            object?.value?.narrower_entities || [],
-                        },
-                      });
-                }}
-              />
-              <Form.Control
-                type="text"
-                placeholder="Enter concept broader entities"
-                onChange={(e) => {
-                  typeof object.value === "string"
-                    ? setObject({
-                        value: {
-                          description: "",
-                          related_entities: [],
-                          broader_entities: e.target.value
-                            .split(",")
-                            .map((e) => e.trim()),
-                          narrower_entities: [],
-                        },
-                      })
-                    : setObject({
-                        value: {
-                          description: object?.value?.description || "",
-                          related_entities:
-                            object?.value?.related_entities || [],
-                          broader_entities: e.target.value
-                            .split(",")
-                            .map((e) => e.trim()),
-                          narrower_entities:
-                            object?.value?.narrower_entities || [],
-                        },
-                      });
-                }}
-              />
-              <Form.Control
-                type="text"
-                placeholder="Enter concept narrower entities"
-                onChange={(e) => {
-                  typeof object.value === "string"
-                    ? setObject({
-                        value: {
-                          description: "",
-                          related_entities: [],
-                          broader_entities: [],
-                          narrower_entities: e.target.value
-                            .split(",")
-                            .map((e) => e.trim()),
-                        },
-                      })
-                    : setObject({
-                        value: {
-                          description: object?.value?.description || "",
-                          related_entities:
-                            object?.value?.related_entities || [],
-                          broader_entities:
-                            object?.value?.broader_entities || [],
-                          narrower_entities: e.target.value
-                            .split(",")
-                            .map((e) => e.trim()),
-                        },
-                      });
-                }}
-              />
-            </>
-          )}
-        </Form.Group>
-        <Form.Group className="mb-3">
-          <Form.Label>
-            <i>Preference</i>
-          </Form.Label>
-          <Form.Control
-            type="number"
-            min={-1.0}
-            max={1.0}
-            step={0.1}
-            placeholder="Enter preference value"
-            onChange={(e) => setPrefValue(parseFloat(e.target.value))}
-          />
-        </Form.Group>
-        <Form.Group className="mb-3">
-          <Form.Label>
-            <i>Origin statement ID</i>
-          </Form.Label>
-          <Form.Control
-            type="text"
-            placeholder="Enter statement ID"
-            onChange={(e) => setStatementID(e.target.value)}
-          />
-        </Form.Group>
-        <Button
-          className="mt-3"
-          style={{ marginRight: "10px" }}
-          variant="primary"
-          onClick={addPreference}
-        >
-          Add preference
-        </Button>
-      </Form>
-    </>
-  );
-};
-
-export default PreferencePopulationForm;
diff --git a/pkg_client/src/components/StatementPopulationForm.tsx b/pkg_client/src/components/StatementPopulationForm.tsx
index c3a477c..52aaf5d 100644
--- a/pkg_client/src/components/StatementPopulationForm.tsx
+++ b/pkg_client/src/components/StatementPopulationForm.tsx
@@ -2,10 +2,20 @@ import { useState, useContext } from "react";
 import Form from "react-bootstrap/Form";
 import Button from "react-bootstrap/Button";
 import { UserContext } from "../contexts/UserContext";
-import { TripleElement } from "./PopulateForm";
 import axios from "axios";
 import { Alert } from "react-bootstrap";
 
+export interface Concept {
+  description: string;
+  related_entities: string[];
+  broader_entities: string[];
+  narrower_entities: string[];
+}
+
+export interface TripleElement {
+  value: string | Concept;
+}
+
 const StatementPopulationForm = () => {
   const { user } = useContext(UserContext);
   const [description, setDescription] = useState("");