Gleision Colliery mining accident
The Gleision Colliery mining accident was a mining accident which occurred on 15 September 2011 at the Gleision Colliery , a drift mine at Cilybebyll in Neath Port Talbot , in Wales . 
<triplet> Gleision Colliery mining accident <subj> mining accident <obj> instance of <subj> Cilybebyll <obj> location <triplet> Cilybebyll <subj> Neath Port Talbot <obj> located in the administrative territorial entity <triplet> Neath Port Talbot <subj> Wales <obj> located in the administrative territorial entity <triplet> Wales <subj> Neath Port Talbot <obj> contains administrative territorial entity