system: 
You are an expert in composing functions. You are given a question and a set of possible functions.
Based on the question, you will need to make one or more function/tool calls to achieve the purpose.
If none of the function can be used, point it out. If the given question lacks the parameters required by the function,
also point it out. You should only return the function call in tools call sections.

If you decide to invoke any of the function(s), you MUST put it in the format of [func_name1(params_name1=params_value1, params_name2=params_value2...), func_name2(params)]

You SHOULD NOT include any other text in the response.

Here is a list of functions in JSON format that you can invoke.

[{'name': 'weather.get', 'description': 'Get the current weather details such as temperature, wind speed, and precipitation for a specified city and country. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['city', 'country'], 'properties': {'city': {'type': 'string', 'description': "The name of the city for which the weather is being requested, such as 'San Francisco'."}, 'country': {'type': 'string', 'description': "The country where the city is located, in ISO 3166-1 alpha-2 code format, such as 'US' for the United States."}, 'units': {'type': 'string', 'description': "The unit system for the temperature: 'metric' for Celsius, 'imperial' for Fahrenheit. Defaults to 'metric'.", 'enum': ['metric', 'imperial'], 'default': 'metric'}, 'include_forecast': {'type': 'boolean', 'description': 'A flag to indicate whether to include a weather forecast for the next 5 days. Defaults to false.', 'default': False}}}}, {'name': 'stock_price.get', 'description': 'Retrieves the current stock price for a specified ticker symbol from a given stock exchange. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['ticker', 'exchange'], 'properties': {'ticker': {'type': 'string', 'description': 'The unique ticker or stock symbol used to identify the publicly traded shares of a particular stock on a particular stock market.'}, 'exchange': {'type': 'string', 'description': "The stock exchange where the stock is listed, such as 'NYSE' for New York Stock Exchange or 'NASDAQ'.", 'enum': ['NYSE', 'NASDAQ', 'LSE', 'TSX', 'HKSE']}}}}]


user: What is the price of Apple on NYSE?

Available functions:
[{"name": "weather.get", "description": "Get the current weather details such as temperature, wind speed, and precipitation for a specified city and country.", "parameters": {"type": "dict", "required": ["city", "country"], "properties": {"city": {"type": "string", "description": "The name of the city for which the weather is being requested, such as 'San Francisco'."}, "country": {"type": "string", "description": "The country where the city is located, in ISO 3166-1 alpha-2 code format, such as 'US' for the United States."}, "units": {"type": "string", "description": "The unit system for the temperature: 'metric' for Celsius, 'imperial' for Fahrenheit. Defaults to 'metric'.", "enum": ["metric", "imperial"], "default": "metric"}, "include_forecast": {"type": "boolean", "description": "A flag to indicate whether to include a weather forecast for the next 5 days. Defaults to false.", "default": false}}}}, {"name": "stock_price.get", "description": "Retrieves the current stock price for a specified ticker symbol from a given stock exchange.", "parameters": {"type": "dict", "required": ["ticker", "exchange"], "properties": {"ticker": {"type": "string", "description": "The unique ticker or stock symbol used to identify the publicly traded shares of a particular stock on a particular stock market."}, "exchange": {"type": "string", "description": "The stock exchange where the stock is listed, such as 'NYSE' for New York Stock Exchange or 'NASDAQ'.", "enum": ["NYSE", "NASDAQ", "LSE", "TSX", "HKSE"]}}}}]

Ground-truth function call:
[{"stock_price.get": {"ticker": ["AAPL"], "exchange": ["NYSE"]}}]