diff --git a/ui/src/Services/API.ts b/ui/src/Services/API.ts
index 9a6e4f93..e04a9a57 100644
--- a/ui/src/Services/API.ts
+++ b/ui/src/Services/API.ts
@@ -32,7 +32,7 @@
  *   limitations under the License.
  *
  */
-import type { Settings, UserProfile, KGCoreResult, UUID, Stage, StructureOfType, InstanceFull, InstanceSummary, SuggestionStructure, Neighbor, Scope, UserSummary, IncomingLink, InstanceRawStructure, InstanceLabelData, InstanceSummaryData, InstanceFullData } from '../types';
+import type { Settings, UserProfile, KGCoreResult, UUID, Stage, StructureOfType, InstanceFull, InstanceSummary, SuggestionStructure, Neighbor, Scope, UserSummary, IncomingLink, InstanceRawStructure, InstancesData, InstanceLabel } from '../types';
 
 interface APIErrorResponse {
   status: number;
@@ -79,11 +79,11 @@ interface API {
 
   getInstanceScope(instanceId: UUID): Promise<KGCoreResult<Scope>>;
 
-  getInstancesLabel(stage: Stage | undefined, instanceIds: UUID[]): Promise<KGCoreResult<InstanceLabelData>>;
+  getInstancesLabel(stage: Stage | undefined, instanceIds: UUID[]): Promise<KGCoreResult<InstancesData<InstanceLabel>>>;
 
-  getInstancesSummary(stage: Stage|undefined, instanceIds: UUID[]): Promise<KGCoreResult<InstanceSummaryData>>;
+  getInstancesSummary(stage: Stage|undefined, instanceIds: UUID[]): Promise<KGCoreResult<InstancesData<InstanceSummary>>>;
 
-  getInstancesList(stage: Stage | undefined, instanceIds: UUID[]): Promise<KGCoreResult<InstanceFullData>>;
+  getInstancesList(stage: Stage | undefined, instanceIds: UUID[]): Promise<KGCoreResult<InstancesData<InstanceFull>>>;
 
   getInvitedUsers(instanceId: UUID): Promise<KGCoreResult<UserSummary[]>>;
 
diff --git a/ui/src/Services/APIBackendAdapter.ts b/ui/src/Services/APIBackendAdapter.ts
index 7aba13bd..d6d1dd27 100644
--- a/ui/src/Services/APIBackendAdapter.ts
+++ b/ui/src/Services/APIBackendAdapter.ts
@@ -34,7 +34,7 @@
  *
  */
 import type API from './API';
-import type { UUID, Stage, Settings, UserProfile, KGCoreResult, StructureOfType, InstanceFull, InstanceSummary, SuggestionStructure, Neighbor, Scope, UserSummary, IncomingLink, InstanceRawStructure, InstanceSummaryData, InstanceLabelData, InstanceFullData } from '../types';
+import type { UUID, Stage, Settings, UserProfile, KGCoreResult, StructureOfType, InstanceFull, InstanceSummary, SuggestionStructure, Neighbor, Scope, UserSummary, IncomingLink, InstanceRawStructure, InstancesData, InstanceLabel } from '../types';
 import type { AxiosInstance } from 'axios';
 
 const RELATIVE_ROOT_PATH = '/editor/api';
@@ -180,17 +180,17 @@ class APIBackendAdapter implements API {
     return data;
   }
 
-  async getInstancesLabel(stage: Stage, instanceIds: UUID[]): Promise<KGCoreResult<InstanceLabelData>> {
+  async getInstancesLabel(stage: Stage, instanceIds: UUID[]): Promise<KGCoreResult<InstancesData<InstanceLabel>>> {
     const { data } = await this._axios.post(endpoints.instancesLabel(stage), instanceIds);
     return data;
   }
 
-  async getInstancesSummary(stage: Stage | undefined, instanceIds: UUID[]): Promise<KGCoreResult<InstanceSummaryData>> {
+  async getInstancesSummary(stage: Stage | undefined, instanceIds: UUID[]): Promise<KGCoreResult<InstancesData<InstanceSummary>>> {
     const { data } = await this._axios.post(endpoints.instancesSummary(stage), instanceIds);
     return data;
   }
 
-  async getInstancesList(stage: Stage, instanceIds: UUID[]): Promise<KGCoreResult<InstanceFullData>> {
+  async getInstancesList(stage: Stage, instanceIds: UUID[]): Promise<KGCoreResult<InstancesData<InstanceFull>>> {
     const { data } = await this._axios.post(endpoints.instancesList(stage), instanceIds);
     return data;
   }
diff --git a/ui/src/types.ts b/ui/src/types.ts
index 64eee51f..207eb83a 100644
--- a/ui/src/types.ts
+++ b/ui/src/types.ts
@@ -279,11 +279,7 @@ export type InstanceRawData = {
   [fieldName:string]: unknown;
 }
 
-export type InstanceLabelData = Record<UUID,InstanceLabel>; // by instanceId
-
-export type InstanceSummaryData = Record<UUID,InstanceSummary>; // by instanceId
-
-export type InstanceFullData = Record<UUID,InstanceFull>; // by instanceId
+export type InstancesData<T extends InstanceLabel> = Record<UUID,T>; // by instanceId
 
 export interface InstanceRawStructure {
   data: InstanceRawData;