n-p-n nnooo no-no no-op non-u nonno nonop nonot noonu noort nopun noron norro nortt norun notno noto- noton notto notup nourt ntoro nu-nu nunon nunun nuoro nupur nurun nuton onont onoon onorn onoto onour onout onpop onpot onto- ontoo ontop ontur ooooo opnto oppon opto- optot optto ornon ornot orono orout orton ortoo oruro orutu otono ototo otour otpor ottur ouoro ourno outon outro outto p-n-p po-on po-po ponnu ponor ponto ponup poopo poort popon popop poppo popup porn- porno poro- poron porro porto portu porur poton potoo potop potor potro potto pottu pptnt prntr proor proot prop- propn propp propr propt prot- proto prout prtor prun- pruno prunt ptprn ptpro ptprr ptprt ptpru punon punto puppo puro- putno puton putor putt- putto puttu putun putuo putup ro-ro ronno ronto roto- roton rotor rotot rotto rotun rount routt rprop rptor runo- runon runto runup ruutu t-nut t-pop t-top tntnt tono- tonto tonup topo- topon topor topot toppo topto topup toron torpo torro torto tortu torun toto- toton totoo totop totup tourn touro tprot trono troon troop trop- tropo trott troup trout trupt truro ttttt tunon tuotu tupou turn- turno turnp turnt turnu turon turot turro turtu turup turut tutor tutto tutun tuuru u-pop unnun unnur unnut unoor unorn unpot unput unrun untop unurn upnor uppon upput uprun upton uptop urour urutu utro- utrop utror uttur uturn uturu ututo uuuuu