-er -up eee eek eel eep eer ees eie eii eik eil eip eir eis eiu eke eki ekl ekp ekr eks eku ele eli elk ell elp elr els elu ep- epe epi epl epp epr eps epu ere eri erk erl erp err ers eru es- ese esi esk esl esp esr ess esu eu- eue eui eul eup eur eus ie- iee iei iek iel iep ier ies iie iii iil iip iir iis iiu ike iki ikk ikl ikr iks iku il- ile ili ilk ill ilp ilr ils ilu ipe ipi ipl ipp ipr ips ipu ir- ire iri irk irl irp irr irs iru is- ise isi isk isl isp isr iss isu iu- iue iui iup iur ius ke- kee kei kek kel kep ker kes kie kii kik kil kip kir kis kiu kke kki kkk kkl kkp kkr kks kku kl- kli klr kls klu kpe kpi kpk kpl kpp kpr kps kpu kri krk krl krp krr krs kru kse ksi ksk ksl ksp ksr kss ksu kue kui kuk kul kup kur kus kuu l-p lee lei lek lel lep ler les leu lie lii lik lil lip lir lis liu lkl lkp lkr lks lle lli llk lll llp llr lls llu lpe lpi lpk lpl lpp lpr lps lpu lri lrk lrp lrr lrs lru lse lsi lsk lsl lsp lsr lss lsu lue lui luk lul lup lur lus luu p-p pee pei pek pel pep per pes peu pie pii pik pil pip pir pis piu pke pki pkl pkp pkr pks pku ple pli plk pll plp plr pls plu ppe ppi ppk ppl ppp ppr pps ppu pre pri prk prl prp prr prs pru ps- pse psi psk psl psp psr pss psu pue pui puk pul pup pur pus puu re- ree rei rek rel rep rer res reu rie rii rik ril rip rir ris rke rkk rkp rks rku rle rli rll rlp rlr rls rlu rpe rpi rpk rpl rpp rpr rps rpu rri rrk rrl rrp rrr rrs rru rse rsi rsk rsl rsp rsr rss rsu rue rui ruk rup rur rus ruu se- see sei sek sel sep ser ses seu sie sii sik sil sip sir sis siu sk- ske ski skk skl skp skr sks sku sle sli slk sll slp slr sls slu spe spi spk spl spp spr sps spu sr- sre sri srk srl srp srr srs ss- sse ssi ssk ssl ssp ssr sss ssu sue sui suk sul sup sur sus suu uee uei uel uep uer ues uie uii uil uip uir uis uiu uke uki ukk ukl ukp ukr uku ule uli ulk ull ulp ulr uls ulu up- upe upi upk upp upr ups upu ur- ure uri urk url urp urr urs uru use usi usk usl usp usr uss usu uue uur uus uuu