n-p-n nnooo no-no no-op non-u nonno nonop nonot noonu nopun notno noto- noton notto notup noxon nu-nu nunon nunun nuton nuttx onont onoon onoto onout onpop onpot onto- ontoo ontop ooooo opnto oppon opto- optot optto otono ototo outon outto ouxpo oxton p-n-p p-o-x po-on po-po ponnu ponto ponup poopo popon popop poppo popup poton potoo potop potto pottu poxon pppox pptnt punon punto puppo putno puton putt- putto puttu putun putuo putup t-nut t-pop t-top tntnt tono- tonto tonup topo- topon topot toppo topto topup toto- toton totoo totop totup toxo- toxon ttttt tunon tuotu tupou tutto tutun u-pop unnun unnut uno-x unpot unput untop uppon upput upton uptop ututo uuuuu x-out xonox xotox xoxox xunpu