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": "density", "description": "Calculates the density of an object given its mass and volume.", "parameters": {"mass": {"description": "The mass of the object.", "type": "float"}, "volume": {"description": "The volume of the object.", "type": "float"}}}, {"name": "calculate_standard_deviation", "description": "Calculates the standard deviation of a list of numbers.", "parameters": {"numbers": {"description": "The list of numbers.", "type": "List[Union[int, float]]"}}}]
Can you calculate the density of a substance with a mass of 500 grams and a volume of 50 cubic centimeters, and also find the standard deviation of a set of test scores: 85, 90, 92, 88, 95?
user
assistant
[{"name": "density", "arguments": {"mass": 500, "volume": 50}}, {"name": "calculate_standard_deviation", "arguments": {"numbers": [85, 90, 92, 88, 95]}}]