Unable to Display SPARQL Query Results Using %%sparql Magic Cell

Hello,

I hope this message finds you well. I am currently using the AWS Graph Notebook in Visual Studio Code to execute SPARQL queries. However, I'm facing an issue with displaying the results of SPARQL queries using the `%%sparql` magic cell annotation.

### Problem:
When I attempt to execute a SPARQL query using the `%%sparql` cell annotation in Visual Studio Code, the query runs successfully, but the results are not being displayed in the output. Instead, I only see an empty cell with no visible output.

### Steps to Reproduce:

1. Open Visual Studio Code.
2. Create a new notebook.
3. Use the `%%sparql` magic cell annotation to execute a SPARQL query.
4. Run the cell.
5. Notice that the query executes, but the results are not displayed.

### Expected Outcome:
I expect that when I execute a SPARQL query using the `%%sparql` magic cell annotation, the query results should be displayed in the output cell as expected.

### Additional Information:

- I am using the latest version of the AWS Graph Notebook extension.
- I have tried executing various SPARQL queries, but none of them display results using the `%%sparql` cell annotation.
- I have also attempted to restart Visual Studio Code and reload the notebook, but the issue persists.

I would greatly appreciate your assistance in resolving this issue.

Please let me know if there's any additional information or logs that would be helpful for debugging.

Thank you for your attention to this matter.