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.

And Shopify plays a more central role in the lives of more than one million merchants on our platform, we need to be the retail operating system, which means we need to make it easy for them to sell anywhere where potential customers may be, whether that's on a place like Pinterest or a social media platform or in a marketplace like Walmart.

Answer: industry: Pinterest, social media