Mistastin crater
Mistastin crater is a meteorite crater in Labrador , Canada which contains the roughly circular Mistastin Lake . 
<triplet> Mistastin crater <subj> crater <obj> instance of <subj> Labrador <obj> located in the administrative territorial entity <triplet> Labrador <subj> Canada <obj> country <triplet> Canada <subj> Labrador <obj> contains administrative territorial entity