{:updated, h.(updated_at)},
{:"ostatus:conversation", [ref: h.(activity.data["context"])], h.(activity.data["context"])},
{:link, [ref: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},
{:updated, h.(updated_at)},
{:"ostatus:conversation", [ref: h.(activity.data["context"])], h.(activity.data["context"])},
{:link, [ref: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},