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.

You are hereby notified that Levi & Korsinsky, LLP has commenced an investigation into the fairness of the sale of Rentrak Corporation ( RENT ) to comScore, Inc. ( SCOR ) for 1.15 shares of comScore, representing an approximate value of $49.63 per share based on the closing price of comScore on the business day prior to the merger announcement.

Answer: owner_of: comScore, Rentrak