They came back with classics like iPhone maker Apple ( NASDAQ:AAPL ) , e-commerce titan Amazon.com ( NASDAQ:AMZN ) , and coffee chain Starbucks ( NASDAQ:SBUX ) , all of which offer unique value right now.
Analyze the relationship between 'Starbucks' and 'coffee' within the context of the input sentence.
Options: product/material produced, director/manager, currency, developer