bob[7], bok[6], bot[6], bor[5], rob[5], kot[5], kto[5], tok[5], kor[4], kro[4], okr[4], ork[4], rok[4], ort[4], rot[4], tor[4], kwo[4], wok[4], rwo[3], wow[3],
bo[4], ko[3], ok[3], ot[3], to[3], or[2], ro[2],