cob[6], bok[6], bom[6], mob[6], bot[6], koc[5], com[5], moc[5], kom[5], kot[5], kto[5], tok[5], tom[5], soc[4], kos[4], sok[4], osm[4], som[4], sto[4],
bo[4], co[3], ko[3], ok[3], om[3], ot[3], to[3], ts[3], os[2],
