fob[9], fis[7], fos[7], sof[7], bid[6], bod[6], boi[5], obi[5], bis[5], doi[4], ido[4], dis[4], osi[3], sio[3], soi[3], sos[3],
fi[6], bi[4], bo[4], id[3], do[3], od[3], si[2], os[2],
