bach[10], hach[9], haha[6],
cab[8], ach[7], chi[7], ich[7], bah[6], hab[6], aba[5], abi[5], bai[5], aha[4], hai[4], iah[4],
ab[4], bi[4], ah[3], ha[3], hi[3], aa[2], ai[2],
