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': 'uber.ride', 'description': 'Finds a suitable Uber ride for customers based on their location, preferred ride type, and maximum wait time. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['loc', 'type', 'time'], 'properties': {'loc': {'type': 'string', 'description': "The starting location for the Uber ride, in the format of 'Street Address, City, State'."}, 'type': {'type': 'string', 'description': 'The type of Uber ride the user is ordering.', 'enum': ['plus', 'comfort', 'black']}, 'time': {'type': 'integer', 'description': 'The maximum amount of time, in minutes, the customer is willing to wait for the ride.'}}}}, {'name': 'uber.eat.order', 'description': 'Place an order for food delivery from a specified restaurant on Uber Eats, including the items to order and their quantities. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['restaurant_id', 'items'], 'properties': {'restaurant_id': {'type': 'string', 'description': 'The unique identifier of the chosen restaurant.'}, 'items': {'type': 'array', 'items': {'type': 'dict', 'properties': {'item_id': {'type': 'string', 'description': 'The unique identifier of the selected item.'}, 'quantity': {'type': 'integer', 'description': 'The number of units of the item to order.'}}}, 'description': 'An array of items selected for the order, each with details such as item identifier and quantity.'}, 'delivery_instructions': {'type': 'string', 'description': 'Special instructions for the delivery person, such as gate codes or drop-off preferences.', 'default': ''}}}}, {'name': 'get_current_weather', 'description': 'Retrieves the current weather conditions for a specified location. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['location'], 'properties': {'location': {'type': 'string', 'description': "The geographical location for the weather data, in the format of 'City, State', such as 'San Francisco, CA' or 'New York, NY'."}, 'unit': {'type': 'string', 'description': 'The unit of temperature for the weather data.', 'enum': ['celsius', 'fahrenheit'], 'default': 'fahrenheit'}}}}]


user: Can you place an order for five burgers and six chicken wings from id = McDonald's? Each burger has the item ID 'burger123' and each chicken wing has the item ID 'wing456'.

Available functions:
[{"name": "uber.ride", "description": "Finds a suitable Uber ride for customers based on their location, preferred ride type, and maximum wait time.", "parameters": {"type": "dict", "required": ["loc", "type", "time"], "properties": {"loc": {"type": "string", "description": "The starting location for the Uber ride, in the format of 'Street Address, City, State'."}, "type": {"type": "string", "description": "The type of Uber ride the user is ordering.", "enum": ["plus", "comfort", "black"]}, "time": {"type": "integer", "description": "The maximum amount of time, in minutes, the customer is willing to wait for the ride."}}}}, {"name": "uber.eat.order", "description": "Place an order for food delivery from a specified restaurant on Uber Eats, including the items to order and their quantities.", "parameters": {"type": "dict", "required": ["restaurant_id", "items"], "properties": {"restaurant_id": {"type": "string", "description": "The unique identifier of the chosen restaurant."}, "items": {"type": "array", "items": {"type": "dict", "properties": {"item_id": {"type": "string", "description": "The unique identifier of the selected item."}, "quantity": {"type": "integer", "description": "The number of units of the item to order."}}}, "description": "An array of items selected for the order, each with details such as item identifier and quantity."}, "delivery_instructions": {"type": "string", "description": "Special instructions for the delivery person, such as gate codes or drop-off preferences.", "default": ""}}}}, {"name": "get_current_weather", "description": "Retrieves the current weather conditions for a specified location.", "parameters": {"type": "dict", "required": ["location"], "properties": {"location": {"type": "string", "description": "The geographical location for the weather data, in the format of 'City, State', such as 'San Francisco, CA' or 'New York, NY'."}, "unit": {"type": "string", "description": "The unit of temperature for the weather data.", "enum": ["celsius", "fahrenheit"], "default": "fahrenheit"}}}}]

Ground-truth function call:
[{"uber.eat.order": {"restaurant_id": ["McDonald's"], "items": [[{"item_id": ["burger123"], "quantity": [5]}, {"item_id": ["wing456"], "quantity": [6]}]], "delivery_instructions": [""]}}]