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.

"We see MBDA as a ... core business; we are proud to be one of its leading shareholders and want to be in the future," Airbus Group Tom Enders told analysts in a conference call.

Answer: owned_by: MBDA, Airbus Group; chief_executive_officer: Airbus, Tom Enders; chief_executive_officer: Airbus Group, Tom Enders; employer: Tom Enders, Airbus Group; owner_of: Airbus Group, MBDA