Bedd Arthur
Bedd Arthur ( "Arthur's Grave" ) is a possibly Neolithic hengiform monument megalithic site in the Preseli Hills in the Welsh county of Pembrokeshire . 
<triplet> Bedd Arthur <subj> megalith <obj> instance of <triplet> Welsh <subj> Pembrokeshire <obj> contains administrative territorial entity <triplet> Pembrokeshire <subj> Welsh <obj> located in the administrative territorial entity