ddddd didin digi- digid digin digri dindi dingi dipin dping drigg dring drinn giing ginir gippi grgdn grigg grind grini grinn grrrr i-pin ididn iding igdir iggri igigi igni- iiiii indi- indin indip indir indri ingin iniid ining inini inipi iping ipini irid- irind iring irinn irpin n-p-n ngiri nigdi niiip ningi nipin nipri p-n-p pgnig pigin piing piiri pindi pinid pinin pinn- pinni pipid pippi pipri pirin pirni pirri pring ridin rig-i rigid rindi rindr