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": "predict_evolution_rate", "description": "Predict the evolutionary rate for a specific species for a given timeframe.", "parameters": {"species": {"description": "The species that the evolution rate will be predicted for.", "type": "str", "default": "Darwin"}, "years": {"description": "Number of years for the prediction.", "type": "int", "default": "Darwin"}, "model": {"description": "The model used to make the prediction, options: 'Darwin', 'Lamarck', default is 'Darwin'.", "type": "str"}}}]
What will be the evolutionary rate for 'Equus ferus caballus' in the next 2000 years using Lamarck model and for 'Vulpes vulpes' in the next 1000 years using Darwin model?
user
assistant
[{"name": "predict_evolution_rate", "arguments": {"species": "Equus ferus caballus", "years": 2000, "model": "Lamarck"}}, {"name": "predict_evolution_rate", "arguments": {"species": "Vulpes vulpes", "years": 1000}}]