What is the relationship between Rupert Murdoch and 21st Century Fox 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.

While the size of Rupert Murdoch 's pay packet was getting everyone's attention on Wednesday - 21st Century Fox revealed that his remuneration dropped slightly to $US27.9 million ($39.8 million) last year - people might have missed a more seismic development at the media giant.

Answer: owner_of