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.

Falls in all commodities have taken their toll on Glencore's finances, and there were reports earlier this week that activist shareholder Harris Associates had bought more than 1 per cent of Glencore shares.

Answer: owned_by: Glencore, Harris Associates