loch[8], olch[8], hobo[8], obco[7], bolo[7], lobo[7], obol[7], colo[6], cool[6], loco[6],
cob[6], hoc[6], och[6], bol[6], lob[6], hol[6], oho[5],
bo[4], ho[4], oh[4], co[3],