-er -up eee eek eel een eep eer ees eke ekl ekp ekr eks eku ele elk ell eln elp elr els elu en- ene enk enl enn enp enr ens enu ep- epe epl epn epp epr eps epu ere erk erl ern erp err ers eru es- ese esk esl esn esp esr ess esu eu- eue eul eun eup eur eus ke- kee kek kel ken kep ker kes kke kkk kkl kkn kkp kkr kks kku kl- klr kls klu kn- kne knk knl knn knp knr knu kpe kpk kpl kpn kpp kpr kps kpu krk krl krn krp krr krs kru kse ksk ksl ksn ksp ksr kss ksu kue kuk kul kun kup kur kus kuu l-p lee lek lel len lep ler les leu lkl lkp lkr lks lle llk lll lln llp llr lls llu lne lnk lnl lnn lnp lnr lns lnu lpe lpk lpl lpn lpp lpr lps lpu lrk lrn lrp lrr lrs lru lse lsk lsl lsn lsp lsr lss lsu lue luk lul lun lup lur lus luu ne- nee nek nel nen nep ner nes neu nke nkk nkn nkp nkr nks nku nle nlk nll nln nlp nlr nls nlu nne nnk nnl nnn nnp nns nnu npe npl npn npp npr nps npu nre nrk nrl nrn nrp nrr nrs nru nse nsk nsl nsn nsp nsr nss nsu nue nuk nul nun nup nur nus nuu p-p pee pek pel pen pep per pes peu pke pkl pkn pkp pkr pks pku ple plk pll pln plp plr pls plu pn- pne pnk pnl pnn pnp pnr pns pnu ppe ppk ppl ppn ppp ppr pps ppu pre prk prl prn prp prr prs pru ps- pse psk psl psn psp psr pss psu pue puk pul pun pup pur pus puu re- ree rek rel ren rep rer res reu rke rkk rkp rks rku rle rll rln rlp rlr rls rlu rnn rnp rnr rns rnu rpe rpk rpl rpn rpp rpr rps rpu rrk rrl rrn rrp rrr rrs rru rse rsk rsl rsn rsp rsr rss rsu rue ruk run rup rur rus ruu se- see sek sel sen sep ser ses seu sk- ske skk skl skp skr sks sku sle slk sll sln slp slr sls slu sne snk snl snn snp snr sns snu spe spk spl spn spp spr sps spu sr- sre srk srl srn srp srr srs ss- sse ssk ssl ssn ssp ssr sss ssu sue suk sul sun sup sur sus suu uee uel uen uep uer ues uke ukk ukl ukn ukp ukr uku ule ulk ull uln ulp ulr uls ulu un- une unk unl unn unp unr uns unu up- upe upk upn upp upr ups upu ur- ure urk url urn urp urr urs uru use usk usl usn usp usr uss usu uue uun uur uus uuu