Utilize the input text as a context reference, choose the right relationship between 'Starbucks' and 'coffee' from the options.
Options: product/material produced, headquarters location, original broadcaster, owner of

Hamish Smith, a commodities economist with Capital Economics in London, said in an interview that a company like Starbucks "can't afford to be in a position where it will run out of coffee or will suddenly have to pay an unexpectedly high price for it".
product/material produced