What is the relationship between Viacom and CBS 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.

So we're going to get those from the slate we're using with CBS All Access in the U.S., from Showtime and from Viacom International Studios.

Answer: parent_organization