are in cemeteries
... that many surviving remnants of North American prairie grasslands are in cemeteries?
... that many surviving remnants of North American <a href="./Prairie" id="mwAuE" rel="mw:WikiLink" title="Prairie">prairie</a> grasslands <b id="mwAuI"><a href="./Cemetery_prairie" id="mwAuM" rel="mw:WikiLink" title="Cemetery prairie">are in cemeteries</a></b>?