obawa[7], obawo[7],
abba[8], baba[8], abbo[8], babo[8], boba[8], obab[8], bobo[8], obaw[6],
bab[7], bob[7], abo[5], boa[5], oba[5], baw[5], wab[5], owa[3], owo[3],
ba[4], bo[4], aa[2],
