niby[7], pipy[7], nipy[6], piny[6], niwy[5], winy[5],
bin[5], ibn[5], pip[5], nip[4], pin[4], pni[4], piw[4], yin[4], iwy[4], niw[3], win[3],
by[5], bi[4], pi[3], ny[3], wy[3], in[2], ni[2], iw[2],
