ISOTOPICALLY

ai al as at ay is it la li lo oi op os oy pa pi si so ta ti to ya yo

act ail ais ait all alp als alt apo apt asp ays cap cat cay cis col coo cop cos cot coy icy ill its lac lap las lat lay lip lis lit loo lop lot oat oca oil oot ops opt pac pal pas pat pay pia pic pis pit ply poi pol poo pot psi pst pya sac sal sap sat say sic sip sit sly sol sop sot soy spa spy sty tao tap tas tic til tip tis too top toy yap yip

acts acyl ails aits alit alls ally alps also alto alts apos asci atop call calo capo caps cast cats cays ciao cist city clap clay clip clop clot cloy coal coat coil cola cols colt coly cool coop coos coot cops copy cost cosy cots coys cyst ilia ills illy iota lacs lacy laic laps last lati lats lays lilo lilt lily lipa lips lisp list lits loca loci loco loop loos loot lops lost lota loti lots oast oats ocas oils oily olio olla oops oots opal opts otic pacs pact pacy pail pall pals paly past pats paty pays pial pias pica pics pili pill pily piso pita pits pity plat play plot ploy poco pois poll polo pols poly pool poos post posy pots pyas pyic sail sall salp salt sati scat scop scot sial sill silo silt slap slat slay slip slit slop slot soap soca soil sola soli solo soot soya spat spay spic spit spot stay stoa stop syli taco tail talc tali tall taos taps tics till tils tipi tips toil tola toll tool topi topo tops toyo toys typo yaps yill yips