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.
In the context of the input sentence, determine the relationship between 'Pinterest' and 'social media'.
Options: original broadcaster, industry, headquarters location, owner of