What is the relationship between radio station and radio in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

We have also seen an acceleration in listening to our radio broadcast by our 300-plus local radio station apps as well as voice-activated devices, including Amazon Echo and Google Home.

Answer: industry