oboro[7], wrogo[7],
borg[8], obco[7], boro[6], robo[6], coro[5], owco[5], owoc[5],
cob[6], bor[5], rob[5], gro[5], ogr[5], oro[3], owo[3], rwo[3],
bo[4], go[4], co[3], or[2], ro[2],
