POLYPROTIC

it li lo oi op or oy pi ti to yo

col coo cop cor cot coy cry icy lip lit loo lop lot oil oot opt orc ort pic pip pit ply poi pol poo pop pot pro pry rip roc rot tic til tip too top tor toy try yip

city clip clop clot cloy coil coir colt coly cool coop coot copy cory crit crop loci loco loop loot lory loti oily olio otic pily pipy pity plop plot ploy poco polo poly pool poop poor port prop pyic pyro riot roil root ropy roti rotl roto ryot tirl tiro toil tool topi topo torc tori toro tory toyo trio trip trop troy typo typp tyro