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.
Text: It's obvious, BMW has told us, Mercedes has and Toyota really in Lexus gave us heads up back as we ended going into April that we'd have some tough sledding during the months of July, August and September.
user
parent_organization: Lexus, Toyota; owned_by: Lexus, Toyota
assistant