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": "fertility_window_get", "description": "Calculates the fertility window based on the first day of the last menstrual period and the cycle length by making a GET request to the pregnancy calculator API.", "parameters": {"menstrual_date": {"description": "The date of the first day of the last menstrual period in the format 'YYYY-MM-DD'.", "type": "str", "default": "2023-06-01"}, "cycle_length": {"description": "The length of the menstrual cycle in days.", "type": "int", "default": "28"}}}, {"name": "view_all_food_items", "description": "Retrieves a comprehensive list of all available food items from the API with an optional limit on the number of items.", "parameters": {"limit": {"description": "The maximum number of food items to retrieve. Defaults to 10.", "type": "int, optional", "default": "10"}}}]
I need to calculate the fertility window for a cycle starting on 2023-06-05 with a length of 27 days. Also, provide the top 8 food items from the nutrition database.
user
assistant
[{"name": "fertility_window_get", "arguments": {"menstrual_date": "2023-06-05", "cycle_length": 27}}, {"name": "view_all_food_items", "arguments": {"limit": 8}}]