Cribinau
Cribinau is a small tidal island off the south west coast of the isle of Anglesey in Wales between Porth China and Porth Cwyfan . 
<triplet> Cribinau <subj> tidal island <obj> instance of <triplet> Anglesey <subj> Wales <obj> located in the administrative territorial entity <triplet> Wales <subj> Anglesey <obj> contains administrative territorial entity