-ous aaaa aaap aaas aaoo aapa aapo aaps aasa aass aasu aaup aaus aopo aosp aoss aous apao apap apas apo- apoo apop apos apou appa apps appu apsa apso apss apsu apua apup apus asaa asao asap asas asau asop asos asou aspa aspo asps assa asso assp asss assu asus auaa aups ausa ausu oaau oaps oass ooaa oooo ooos oops oosa oous opap opo- opos oppa oppo opps opsa opsu opua opus osap osas osoo osos ossa osso ossu oupa ousa ouu- paap paas paos papa papp paps pasa paso pasp pass paua paup paus poas poop poos pop- popa popo popp pops posa poso poss poup pous ppap ppoa ppos pppa pppo pppp ppps ppss psap psas psoa psos psou pspp psps pssa psso puao puas pupa pups pupu pusa puss s-os saap saas saos saou sapa sapo sapp saps sasa saso sass saua saup saus soap soas soop soos sopa sopo sopp sops sopu sosa soso soss soup sous sp-a spap spas spau spoo spop spos spps spsa spso spsp spss spus ssaa ssao ssap ssas ssau ssop sspa sspo ssps sssa ssss suas suos sup- supa supo supp sups sus- susa suso susp suss susu suus uasa uasp uaua upas upos uppa uppp uppu upsa upup us-a usaa usap usas usos uspa uspo uspp usps ussa usss ussu usua usus uuuu