Tricorythus
Tricorythus or Trikorythos or Tricorynthus or Trikorynthos ( Τρικόρυνθος ) or Tricorinthus or Trikorinthos ( Τρικόρινθος ) was a deme of ancient Athens , in the plain of Marathon in northeast Attica . 
<triplet> Tricorythus <subj> deme <obj> instance of