-itis bibbs bibis biffi biffs bilbi bili- bilif bilis billi bills bilsi bisfi bitis bitit bitti bitts bliss blist blits blitt fibis fili- fills filst fissi fists fitil fitit fitts flist flits ft-lb ftlbs ibill iblis if-- ifill ifits ifttt iiiii iitti ilfis iliff ilift illit iltis is-is isfit isili isill isisi isiti isits isitt istlt itbit itfit itisi itsit ittti l-sit li-fi libis lifts liisi lilis lilli lilts lisis liss- lists litis litsi littb litti s-iii sibli sifts siili silli sills silts sisil sisis sisli sissi sists sitit sitsi sitti slift sliss slits slsts sssss stfis stib- stibb stiff stift stiif stilb still stils stilt stitt tbill tbtbt ti-ti tibbi tibbs tiffs tifts tilfi tilli tills tilsi tilst tilts tisis tiss- tissi titii titil titis titli titti tsili tstlt ttttt