Refer to the input text as context and select the correct relationship between 'Reddit' and 'SAN FRANCISCO' from the available options.
Options: operator, member of, headquarters location, manufacturer

SAN FRANCISCO (MarketWatch) — Voat, a small social news and forum site that promises no censorship, has become a refuge for angry Reddit users, but the site’s creator says he plans to avoid the mistakes made by others, including the so-called “front page of the Internet.”
headquarters location