giing gippi gitig gitit gnptg gwinn i-pin igigi igni- iiiii iitti ingin ining inini inipi innit innti inwit iping ipini ipiti itigi ittti itwin n-p-n niiip ningi ninti nipin nipit nitin nitti ntini p-n-p pgnig pigin pigit piing pinin pinit pinn- pinni pipit pippi pitin pitip pitti pptnt ti-ti tigin tigit tiigi tingi tinig tipin tipit tippi titig titii titin titpn titti tntnt tping ttttt twigg twin- twing twinn wi-wi win-t wingt winit winpt winti wipit witin witti ww-ii wwiii wwwww