    Context:
    ```
    Preliminary evaluations based on GPT-4, summarized in Figure 1, show that Vicuna achieves 90%* capability of Bard/ChatGPT.
    ```
    
    For the context above, output a Python json object for the lexical unit 'Preliminary' in the following format:
    {
       "meaning": "<a detailed contextual meaning of the lexical unit, with no more than 500 words>"
    }
 

    json = Add stress words that are fully capitlized. Make sure these stress words appear more than 10 times.
user