Copthall School
Copthall School ( formerly Copthall County Grammar School ) is a girls' secondary school and sixth form located in the Mill Hill area of the London Borough of Barnet , England . 
<triplet> Copthall School <subj> secondary school <obj> instance of <subj> Mill Hill <obj> located in the administrative territorial entity <subj> London Borough of Barnet <obj> located in the administrative territorial entity <triplet> Mill Hill <subj> London Borough of Barnet <obj> located in the administrative territorial entity