-er -up eee eek eem eeo eep eer eet eke eko ekp ekr ekt eku em- eme emk emm emo emp emr emt emu eo- eoe eok eom eoo eop eor eot eou ep- epe epm epo epp epr ept epu ere erk erm ero erp err ert eru ete etk etm eto etp etr ett etu eu- eue eup eur eut k-t ke- kee kek kem keo kep ker ket kke kkk kkm kkp kkr kkt kku kme kmk kmm kmo kmp kmt kmu koe kok kom koo kop kor kot kou kpe kpk kpm kpo kpp kpr kpt kpu krk kro krp krr krt kru kte ktk ktm kto ktp ktr ktt ktu kue kuk kum kup kur kut kuu m-o m-r mee mek mem meo mep mer met meu mke mkk mkm mko mkp mkr mkt mku mme mmk mmm mmo mmp mmr mmt mmu moe mok mom moo mop mor mot mou mpe mpk mpm mpo mpp mpr mpt mpu mre mrk mrm mro mrp mrr mrt mru mte mtk mtm mto mtp mtr mtt mtu mue muk mum mup mur mut muu oee oem oeo oep oer oet oke okk oko okp okr oku om- ome omm omo omp omr omt omu oo- ook oom ooo oop oor oot op- ope opk opm opo opp opr opt or- ore ork orm oro orp orr ort oru ot- ote otk otm oto otp otr ott otu ou- oue ouk oum ouo oup our out p-p pee pek pem peo pep per pet peu pke pkm pko pkp pkr pkt pku pme pmk pmm pmo pmp pmr pmt pmu poe pok pom poo pop por pot pou ppe ppk ppm ppo ppp ppr ppt ppu pre prk prm pro prp prr prt pru pt- pte ptk ptm pto ptp ptr ptt ptu pue puk pum pup pur put puu re- ree rek rem reo rep rer ret reu rke rkk rkm rko rkp rkt rku rme rmm rmo rmp rmr rmt roe rok rom roo rop ror rot rou rpe rpk rpm rpo rpp rpr rpt rpu rrk rrm rrp rrr rrt rru rte rtk rtm rto rtp rtr rtt rtu rue ruk rum ruo rup rur rut ruu te- tee tek tem teo tep ter tet teu tke tkk tkm tko tkp tkr tkt tme tmk tmm tmo tmp tmr tmt tmu to- toe tok tom too top tor tot tou tpe tpk tpm tpo tpp tpr tpt tpu tre trk trm tro trp trr trt tru tte ttk ttm tto ttp ttr ttt ttu tue tuk tum tuo tup tur tut tuu uee uem uep uer uet uke ukk ukp ukr uku um- ume umm umo ump umr umt umu uoe uok uom uoo uop uor uot up- upe upk upm upo upp upr upt upu ur- ure urk urm uro urp urr urt uru ute utk utm uto utp utr utt utu uue uum uur uut uuu