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.

WASHINGTON Aug 28 A key Federal Reserve policymaker said on Friday that recent financial market turbulence made him less resolute over the prospect of hiking U.S. interest rates in September, news agency Market News International reported, citing an interview.

Answer: product_or_material_produced: news agency, News