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.

The figure reflects the daily JKM assessment published by Platts , a leading global energy, petrochemicals and metals information provider and a premier source of benchmark price references, between August 17 and September 15, expressed as a monthly average.

Answer: parent_organization: Platts, global; owned_by: Platts, global