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.

In high-speed rail, HSR sector, major contracts signed in the past quarter, including train control center, TCC, solution for sections of the Taiyuan to Jiaozuo line, Zhengzhou to Wangzhou line and the inter-city line of Southern Sichuan.

Answer: owner_of: Zhengzhou, line