Screen shots from the Common Lisp version of the Knowledge Graph Navigator app for macOS:

app with sample query
A random test query is provided when the app opens. This provides occasional examples for the queries you enter. Common Lisp version.

verifying entities
The app will recognize entities in queries and confirm with the user (you!) that it has found the correct entities. Common Lisp version.

showing more results
The message collection pane shows generated SPARQL queries that the app uses to process your query. The results pane show information found. Common Lisp version.