User question:
user: While doing some financial analysis, I've been looking into the details of certain stocks, and 'AAPL' caught my attention. I'd like to know which company it represents. Could you help me find out the company name associated with the stock symbol 'AAPL'?

Available functions:
name: get_stock_price_by_stock_name
description: Finds the price 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
name: mat_mul
description: Multiplies two matrices.
parameters: type: dict
properties: matA: type: array
description: The first matrix.
items: type: array
items: type: integer
matB: type: array
description: The second matrix.
items: type: array
items: type: integer
required: matA
matB
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
name: math_gcd
description: Calculates the greatest common divisor of two numbers.
parameters: type: dict
properties: a: type: integer
description: The first number. This should be the larger number.
b: type: integer
description: The second number.
required: a
b

Ground-truth function call(s):
get_company_name_by_stock_name(stock_name='AAPL')