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": "treeequivalent", "description": "Calculate the number of trees required to create a given weight of paper.", "parameters": {"weight": {"description": "The weight of the paper.", "type": "str", "default": "200"}, "unit": {"description": "The unit of measurement for the weight (e.g., 'kg' or 'lb').", "type": "str", "default": "kg"}}}, {"name": "airports_by_keyword", "description": "Fetches a list of airport names and their IATA codes that match the given keyword.", "parameters": {"keyword": {"description": "A search term to match against airport names and IATA codes.", "type": "str", "default": ""}}}, {"name": "cleanhydrotocarbonfootprint", "description": "Calculate the CO2 equivalent (CO2e) in kilograms from the consumption of clean hydro energy.", "parameters": {"energy": {"description": "The source of the clean energy. Can be 'Solar', 'Wind', 'HydroElectric', 'Biomass', 'Geothermal', 'Tidal' or 'OtherCleanEnergy'.", "type": "str", "default": "Solar"}, "consumption": {"description": "The amount of energy consumed in kWh.", "type": "str", "default": "500"}}}]
How many trees are required to produce 1000 kilograms of paper?
user
assistant
[{"name": "treeequivalent", "arguments": {"weight": "1000", "unit": "kg"}}]