social graph
... that the largest social graph, which represents the relationships between online users, is owned by Facebook, the world's largest social networking service?
... that the largest <b id="mwCfI"><a href="./Social_graph" id="mwCfM" rel="mw:WikiLink" title="Social graph">social graph</a></b>, which represents the relationships between online users, is owned by <a href="./Facebook" id="mwCfQ" rel="mw:WikiLink" title="Facebook">Facebook</a>, the world's largest <a href="./Social_networking_service" id="mwCfU" rel="mw:WikiLink" title="Social networking service">social networking service</a>?