Boium
Boium or Boion was a town and polis ( city-state ) of Doris , and one of the original towns of the Doric Tetrapolis ( along with Pindus , Cytinium , and Erineus ) . 
<triplet> Boium <subj> polis <obj> instance of <triplet> Erineus <subj> polis <obj> instance of