-er -up a-a a-c a-z aaa aac aae aak aap aar aau aaz ac- aca acc ace ack acp acr acu acz aea aec aee aek aep aer aeu aez aka akc ake akk akp akr aku ap- apa apc ape apk app apr apu ar- ara arc are ark arp arr aru arz au- aua auc aue auk aup aur auz az- aza aze azp azu azz c-- caa cac cae cak cap car cau caz cca ccc cce cck ccp ccr ccu ccz ce- cea cec cee cek cep cer ceu cez cka ckc cpa cpc cpe cpk cpp cpr cpu cpz cra crc cre crk crp crr cru crz cua cuc cue cuk cup cur cuu cuz cz- czc cze czk eaa eac eae eak eap ear eau eaz ec- eca ecc ece eck ecr ecu eea eec eee eek eep eer eka ekc eke ekp ekr eku ep- epa epc epe epp epr epu epz era erc ere erk erp err eru erz eu- eua euc eue eup eur eze ezr ezz k-z ka- kaa kac kae kak kap kar kau kaz kca kcc kce kck kcp kcr kcu ke- kea kec kee kek kep ker kez kkc kke kkk kkp kkr kku kpa kpc kpe kpk kpp kpr kpu kra krc krk krp krr kru kuc kue kuk kup kur kuu p-p paa pac pae pak pap par pau paz pca pcc pce pck pcp pcr pcu pea pec pee pek pep per peu pez pka pkc pke pkp pkr pku ppa ppc ppe ppk ppp ppr ppu ppz pra prc pre prk prp prr pru prz pua puc pue puk pup pur puu puz pzc pzk pzp ra- raa rac rae rak rap rar rau raz rca rcc rce rcp rcr rcu re- rea rec ree rek rep rer reu rez rkc rke rkk rkp rku rkz rpa rpc rpe rpk rpp rpr rpu rpz rra rrc rrk rrp rrr rru rua ruc rue ruk rup rur ruu ruz rza rze ua- uaa uac uae uak uap uar uau uaz uca ucc uce uck ucp ucr ucu uea uec uee uep uer uka ukc uke ukk ukp ukr uku ukz up- upa upc upe upk upp upr upu upz ur- ura urc ure urk urp urr uru urz uua uuc uue uur uuu uza uzu zaa zac zak zap zar zaz zce zea zec zee zek zep zer zez zka zpc zpe zpp zpr zpu zrp zuc zuk zur zuz zzr zzz