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 June, the first ever WPT online poker open on the partypoker U.S. Network became the first WPT real money online gaming events to take place in the United States since the Unlawful Internet Gambling Enforcement Act was adopted in 2006.

Answer: industry: partypoker, online poker