ddddd diddy didin dindi dinny dipin dippy dirpy drinn driny driry dryry dynin dyrdy i-pin iddyr ididn iiiii indi- indin indip indir indri iniid inini ininy inipi ipini irdyn irid- irind irinn irpin iyiyi n-p-n niddy niiip ninny nipin nippy nipri nydri nyiri p-n-p piiri pindi pindy pinid pinin pinn- pinni pinny pipid pippi pippy pipri pirin pirni pirny pirri pirry pridy pynn- pypyn pyrin pyrri ridin rindi rindr rindy ryndy rynin rypin yidin yindi yippy