user: I've got $5000 invested at an annual interest rate of 5%, and I'm planning to leave it untouched for 10 years. I'd like to know what its future value will be. On a different note, I've been eyeing the stock ticker 'AAPL' and I'm curious about the actual company name behind it. Also, just out of curiosity, I'm wondering about the permutations for choosing 3 items from a set of 7. Could we work these out?

Available functions:
name: calculate_future_value
description: Calculates the future value of an investment.
parameters: type: dict
properties: present_value: type: float
description: The present value of the investment, in dollars.
interest_rate: type: float
description: The interest rate of the investment, ranging from 0 to 1.
periods: type: integer
description: The number of periods, in years.
required: present_value
interest_rate
periods
name: calculate_permutations
description: Calculates the number of permutations of k elements from a set of n elements.
parameters: type: dict
properties: n: type: integer
description: The number of elements in the set.
k: type: integer
description: The number of elements to choose.
required: n
k
name: get_company_name_by_stock_name
description: Finds the company name of a stock by its stock name.
parameters: type: dict
properties: stock_name: type: string
description: The stock name of the product, in the format of the stock symbol.
required: stock_name