City Oval
... that City Oval, Pietermaritzburg and St Lawrence Ground, Canterbury, are the only two first-class cricket grounds with a tree inside the boundary?
... that <b id="mwAdE"><a href="./City_Oval" id="mwAdI" rel="mw:WikiLink" title="City Oval">City Oval</a></b>, <a href="./Pietermaritzburg" id="mwAdM" rel="mw:WikiLink" title="Pietermaritzburg">Pietermaritzburg</a> and <a href="./St_Lawrence_Ground" id="mwAdQ" rel="mw:WikiLink" title="St Lawrence Ground">St Lawrence Ground</a>, <a href="./Canterbury" id="mwAdU" rel="mw:WikiLink" title="Canterbury">Canterbury</a>, are the only two <a href="./First-class_cricket" id="mwAdY" rel="mw:WikiLink" title="First-class cricket">first-class cricket</a> grounds with a tree inside the <a href="./Boundary_(cricket)" id="mwAdc" rel="mw:WikiLink" title="Boundary (cricket)">boundary</a>?