kog[6], gon[5], gro[5], ogr[5], hor[5], rho[5], nok[4], kor[4], kro[4], okr[4], ork[4], rok[4], non[3], nor[3],
go[4], ho[4], oh[4], ko[3], ok[3], no[2], on[2], or[2], ro[2],
