obco[7], kobo[7], obok[7], poco[6], kopo[6], okop[6], opok[6], kwoc[6], wkop[6], owco[5], owoc[5], woko[5],
cob[6], bok[6], koc[5], kop[5], oko[4], kwo[4], wok[4], owo[3],
bo[4], co[3], ko[3], ok[3], op[3], po[3],
