system: 
You are an expert in composing functions. You are given a question and a set of possible functions.
Based on the question, you will need to make one or more function/tool calls to achieve the purpose.
If none of the function can be used, point it out. If the given question lacks the parameters required by the function,
also point it out. You should only return the function call in tools call sections.

If you decide to invoke any of the function(s), you MUST put it in the format of [func_name1(params_name1=params_value1, params_name2=params_value2...), func_name2(params)]

You SHOULD NOT include any other text in the response.

Here is a list of functions in JSON format that you can invoke.

[{'name': 'wildlife_population.assess_growth', 'description': 'Assesses the population growth of a specific species in a specified location over a period. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'properties': {'species': {'type': 'string', 'description': 'The species for which the growth is to be calculated.'}, 'location': {'type': 'string', 'description': 'The area where the species is present.'}, 'duration': {'type': 'integer', 'description': 'The time period for which the population growth should be calculated in years.'}}, 'required': ['species', 'location', 'duration']}}, {'name': 'ecological_impact.analyze', 'description': 'Analyzes the impact of a species on a particular ecosystem. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'properties': {'species': {'type': 'string', 'description': 'The species whose impact is to be calculated.'}, 'ecosystem': {'type': 'string', 'description': 'The ecosystem being affected.'}, 'location': {'type': 'string', 'description': 'The area where the impact is analyzed.'}, 'timeframe': {'type': 'integer', 'description': 'The time period for which the impact analysis should be carried out in years.', 'default': 5}}, 'required': ['species', 'ecosystem', 'location']}}]


user: "Can you help me understand the ecological impact of the African Elephant in the Serengeti ecosystem over the last 5 years and also assess the population growth of the same species in the same location over the last 10 years? After that, I would also like to know the ecological impact of the Bengal Tiger in the Sundarbans ecosystem over the last 3 years and assess the population growth of the same species in the same location over the last 7 years."

Available functions:
[{"name": "wildlife_population.assess_growth", "description": "Assesses the population growth of a specific species in a specified location over a period.", "parameters": {"type": "dict", "properties": {"species": {"type": "string", "description": "The species for which the growth is to be calculated."}, "location": {"type": "string", "description": "The area where the species is present."}, "duration": {"type": "integer", "description": "The time period for which the population growth should be calculated in years."}}, "required": ["species", "location", "duration"]}}, {"name": "ecological_impact.analyze", "description": "Analyzes the impact of a species on a particular ecosystem.", "parameters": {"type": "dict", "properties": {"species": {"type": "string", "description": "The species whose impact is to be calculated."}, "ecosystem": {"type": "string", "description": "The ecosystem being affected."}, "location": {"type": "string", "description": "The area where the impact is analyzed."}, "timeframe": {"type": "integer", "description": "The time period for which the impact analysis should be carried out in years.", "default": 5}}, "required": ["species", "ecosystem", "location"]}}]

Ground-truth function call:
[{"wildlife_population.assess_growth": {"species": ["African Elephant"], "location": ["Serengeti", "Serengeti ecosystem"], "duration": [10]}}, {"ecological_impact.analyze": {"species": ["African Elephant"], "ecosystem": ["Serengeti", "Serengeti ecosystem"], "location": ["Serengeti"], "timeframe": [5, ""]}}, {"wildlife_population.assess_growth": {"species": ["Bengal Tiger"], "location": ["Sundarbans", "Sundarbans ecosystem"], "duration": [7]}}, {"ecological_impact.analyze": {"species": ["Bengal Tiger", "Tiger"], "ecosystem": ["Sundarbans", "Sundarbans ecosystem"], "location": ["Sundarbans"], "timeframe": [3]}}]