Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: 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.

Amazon Music UK head Paul Firth said: "Choice is something we don’t see at play that much in the music streaming market, so if you are a music streaming customer you can either pay £120 a year, or you can be subject to interruptions from ads or other listening restrictions through one of the free services."

Answer: distribution_format: restrictions, music streaming; distribution_format: play, music streaming