What is the relationship between 'Starbucks' and 'coffee' in the context of the input sentence.
Options: product/material produced, distributed by, subsidiary, chairperson

But when coffee prices drop unexpectedly, as they did this year, these advance strategies can have some negative short-term consequences: It's likely that Starbucks paid more than the current spot market price for coffee stocks, which would be reflected in future financial statements.
product/material produced