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.

I do see – one of the benefits of Siemens Healthineers and their acquisition of Varian is that you're able to further integrate the imaging aspects that Siemens brings forward with the radiation therapy, the delivery aspects that Varian has.

Answer: parent_organization: Siemens Healthineers, Siemens