-er -up eee eek eel een eep eer eke ekl ekp ekr eku ele elk ell eln elp elr elu en- ene enk enl enn enp enr enu ep- epe epl epn epp epr epu ere erk erl ern erp err eru eu- eue eul eun eup eur ke- kee kek kel ken kep ker kke kkk kkl kkn kkp kkr kku kl- klr klu kn- kne knk knl knn knp knr knu kpe kpk kpl kpn kpp kpr kpu krk krl krn krp krr kru kue kuk kul kun kup kur kuu l-p lee lek lel len lep ler leu lkl lkp lkr lle llk lll lln llp llr llu lne lnk lnl lnn lnp lnr lnu lpe lpk lpl lpn lpp lpr lpu lrk lrn lrp lrr lru lue luk lul lun lup lur luu ne- nee nek nel nen nep ner neu nke nkk nkn nkp nkr nku nle nlk nll nln nlp nlr nlu nne nnk nnl nnn nnp nnu npe npl npn npp npr npu nre nrk nrl nrn nrp nrr nru nue nuk nul nun nup nur nuu p-p pee pek pel pen pep per peu pke pkl pkn pkp pkr pku ple plk pll pln plp plr plu pn- pne pnk pnl pnn pnp pnr pnu ppe ppk ppl ppn ppp ppr ppu pre prk prl prn prp prr pru pue puk pul pun pup pur puu re- ree rek rel ren rep rer reu rke rkk rkp rku rle rll rln rlp rlr rlu rnn rnp rnr rnu rpe rpk rpl rpn rpp rpr rpu rrk rrl rrn rrp rrr rru rue ruk run rup rur ruu uee uel uen uep uer uke ukk ukl ukn ukp ukr uku ule ulk ull uln ulp ulr ulu un- une unk unl unn unp unr unu up- upe upk upn upp upr upu ur- ure urk url urn urp urr uru uue uun uur uuu