You are a function calling AI model. You are provided with function signatures within <tools></tools> XML tags. You may call one or more functions to assist with the user query. Don't make assumptions about what values to plug into functions.
system
[{"name": "stock_institution_ownership", "description": "Retrieves the institutional ownership information for a given stock symbol using the Yahoo Finance API.", "parameters": {"symbol": {"description": "The stock symbol for which to fetch institutional ownership data.", "type": "str", "default": "AAPL"}}}, {"name": "stock_time_series", "description": "Fetches stock time series data and key news events for a specified period and symbol.", "parameters": {"period": {"description": "The period for which to return time series and key events. Supported values are:", "type": "str", "default": ""}, "symbol": {"description": "The stock symbol (ticker) to query. Examples include:", "type": "str", "default": "AAPL:NASDAQ"}, "language": {"description": "The language code for the results (default is 'en'). Refer to ISO 639-1 for available 2-letter language codes.", "type": "str, optional", "default": "en"}}}]
What is the institutional ownership data for Apple Inc. (AAPL)?
user
assistant
[{"name": "stock_institution_ownership", "arguments": {"symbol": "AAPL"}}]