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]]"}}}]
Calculate the standard deviation for the dataset: 100, 110, 120, 130, and 140. Also, find the density of a cube made of iron with a side length of 5 cm. (Note: The density of iron is 7.874 g/cm3.)
user
assistant
[{"name": "calculate_standard_deviation", "arguments": {"numbers": [100, 110, 120, 130, 140]}}, {"name": "density", "arguments": {"mass": "7.874 * 5 ** 3", "volume": "5 ** 3"}}]