kobo[7], obok[7], boot[7], koto[6], otok[6], kwot[6], wtok[6], woko[5],
bok[6], bot[6], kot[5], kto[5], tok[5], oko[4], oto[4], kwo[4], wok[4], owo[3], wow[3],
bo[4], ko[3], ok[3], ot[3], to[3],
