Related Question: [question]

Input text:
[vlm_response]

Current key entities:
[key_entities]

All entity names in this period:
[all_entities]

Task:
Based on the update of the scene diagram, please analyze the question and the input text to see if there are any new entities related to the question that need to be added as key entities. If so, output the corresponding entity name.

Output format:
```json
{
    "new_key_entities": ["entity_name"], // can be empty
}
```
