-er -up a-a aaa aae aan aap aar aau aea aee aen aep aer aeu an- ana ane ann anp anr anu ap- apa ape apn app apr apu ar- ara are arn arp arr aru au- aua aue aun aup aur eaa eae ean eap ear eau eea eee een eep eer en- ena ene enn enp enr enu ep- epa epe epn epp epr epu era ere ern erp err eru eu- eua eue eun eup eur naa nae nan nap nar nau ne- nea nee nen nep ner neu nna nne nnn nnp nnu npa npe npn npp npr npu nra nre nrn nrp nrr nru nua nue nun nup nur nuu p-p paa pae pan pap par pau pea pee pen pep per peu pn- pna pne pnn pnp pnr pnu ppa ppe ppn ppp ppr ppu pra pre prn prp prr pru pua pue pun pup pur puu ra- raa rae ran rap rar rau re- rea ree ren rep rer reu rna rnn rnp rnr rnu rpa rpe rpn rpp rpr rpu rra rrn rrp rrr rru rua rue run rup rur ruu ua- uaa uae uan uap uar uau uea uee uen uep uer un- una une unn unp unr unu up- upa upe upn upp upr upu ur- ura ure urn urp urr uru uua uue uun uur uuu