{"type":"rich","version":"1.0","title":"DaveNicholls wrote","author_name":"DaveNicholls (npub1m7…q0yf8)","author_url":"https://yabu.me/npub1m7h20lqwnjd8snaf8alefep6xfkdeanlv74ce4my5p4drjed5l2qsq0yf8","provider_name":"njump","provider_url":"https://yabu.me","html":"It's an adjectival clause (it desribes a noun), and usually, though not always, they begin with a relative pronoun, such as which, who, that, whom, or whose. "}