fili- filip fillo fills fissi flipp flips floop flops floss fofos foils foios folio folli follo foloi fooli fools fopos fosil fsoil if-- ifill iiiii ilfis iliff ilio- ilios illos ilsol ioooi ioooo ipils ipsi- ipsos is-is isili isill isilo isios isisi islip isoff isoli isolo l-pop li-fi liisi lilis lilli lillo lilos lipis lipo- lipos lippi lippo lipps lipsi lisio lisis lisps liss- lisso lo-fi lofoi lofos loilo loiss lolif lolis lolli lollo lolls lolol lolos lools loops loosi loppi lopsi offis offof oflos ofoil ofpop oilof oliff olios ollio olofi ooioo ooooo oopsi opio- oploo oppol oppos opsis osill osilo oslip ososo ospis ossi- ossil ossip ossis ossos piisi pili- pilio pilis pillo pills pilo- pioli pipil pipis pipli pippi pippo pissi plio- plips ploop plopi plopp plops po-po poill poli- polio polip polis polli pollo polls polop polos poofs pooli pools poopo poops popil popis popoi popop popos poppi poppo posil posio posip posof posol psil- s-iii s-oil siili silli sills silos silpi silpo sipof sipoo sipos sippi sippo sipsi sisil sisis sisli sissi slip- slips sliss sloff sloop sloos slops sloss so-il so-lo so-so sofis soill soils soli- solis solli solos soosi soppo soss- sossi spiff spili spill spiss splif spoil spol spoof spool sposi sposo sssss