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": "v1_stars", "description": "Fetches a list of stars matching specified parameters with a maximum of 30 results per request. To access more than 30 results, use the offset parameter to paginate through multiple API calls.", "parameters": {"min_distance_light_year": {"description": "Minimum distance of the star from Earth in light years.", "type": "int, optional", "default": ""}, "min_apparent_magnitude": {"description": "Minimum apparent magnitude (brightness) of the star.", "type": "int, optional", "default": ""}, "constellation": {"description": "Identifier of the constellation the star belongs to.", "type": "int, optional", "default": ""}, "max_apparent_magnitude": {"description": "Maximum apparent magnitude (brightness) of the star.", "type": "int, optional", "default": ""}, "offset": {"description": "Number of results to skip for pagination.", "type": "int, optional", "default": ""}, "name": {"description": "Name of the star. Note that many star names contain Greek characters. Default is 'vega'.", "type": "str, optional", "default": "vega"}, "max_absolute_magnitude": {"description": "Maximum absolute magnitude (brightness) of the star.", "type": "int, optional", "default": ""}, "min_absolute_magnitude": {"description": "Minimum absolute magnitude (brightness) of the star.", "type": "int, optional", "default": ""}, "max_distance_light_year": {"description": "Maximum distance of the star from Earth in light years.", "type": "int, optional", "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"}}}, {"name": "dna2aminoacid", "description": "Transforms a DNA sequence into a sequence of Amino Acids using the RapidAPI dna2protein service.", "parameters": {"dna": {"description": "The DNA sequence to be transformed into Amino Acids.", "type": "str", "default": "TACAAAGGCTAACGTCCTAGAGCTATT"}}}]
Calculate the number of trees required to produce 500 kilograms of paper.
user
assistant
[{"name": "treeequivalent", "arguments": {"weight": "500", "unit": "kg"}}]