fili- fillo fills filly fissi flisy floss flyff flyii flylo fofos foils foily foios folio folli follo folly foloi foofy fooli fools fosil fossy foyil foyll fsoil fyllo i-fly if-- ifill iiiii iisys ilfis iliff ilio- ilios illos ilooy ilsol ioooi ioooo iosys is-is isili isill isilo isios isisi isoff isoli isolo isyss iyiyi li-fi liisi lilis lilli lillo lilly lilos lilys lisio lisis liss- lisso lissy lo-fi lofoi lofos loilo loiss loisy lolif lolis lolli lollo lolls lolly lolol lolos lools loosi lossy lysi- lysis lyso- lysol lysos lysyl lyyf- offis offof offoy oflos ofoil oilof oisly oissy oliff olios ollio olofi ooioo ooooo osill osilo ososo ossi- ossil ossis ossos osyll s-iii s-oil siili silli sills silly silos silyl sisil sisis sisli sissi sissy slily sliss sloff sloos sloss slyly so-il so-lo so-so so-yi sofis soill soils soily soisy soli- solis solli solly solos sooly soosi soosy soss- sossi sosyo sssss sylis sylls sysfs yiffs yiffy yills yo-yo yooff yoofs yosoy yossi yoyos