-er a-a aaa aae aak aam aan aao aap aar aea aee aek aem aen aeo aep aer aka ake akk akm akn ako akp akr ama ame amk amm amn amo amp amr an- ana ane ank anm ann ano anp anr aoa aoe aok aom aon aoo aop aor ap- apa ape apk apm apn apo app apr ar- ara are ark arm arn aro arp arr eaa eae eak eam ean eao eap ear eea eee eek eem een eeo eep eer eka eke eko ekp ekr em- ema eme emk emm emn emo emp emr en- ena ene enk enm enn eno enp enr eo- eoa eoe eok eom eon eoo eop eor ep- epa epe epm epn epo epp epr era ere erk erm ern ero erp err ka- kaa kae kak kam kan kao kap kar ke- kea kee kek kem ken keo kep ker kke kkk kkm kkn kkp kkr kma kme kmk kmm kmo kmp kn- kna kne knk knm knn kno knp knr koa koe kok kom kon koo kop kor kpa kpe kpk kpm kpn kpo kpp kpr kra krk krn kro krp krr m-o m-r maa mae mak mam man mao map mar mea mee mek mem men meo mep mer mka mke mkk mkm mkn mko mkp mkr mma mme mmk mmm mmn mmo mmp mmr mna mne mnk mnm mnn mno mnp mnr moa moe mok mom mon moo mop mor mpa mpe mpk mpm mpn mpo mpp mpr mra mre mrk mrm mrn mro mrp mrr naa nae nak nam nan nao nap nar ne- nea nee nek nem nen neo nep ner nka nke nkk nkm nkn nko nkp nkr nma nme nmk nmm nmn nmo nmp nmr nna nne nnk nnm nnn nno nnp no- noa noe nok nom non noo nop nor npa npe npm npn npo npp npr nra nre nrk nrm nrn nro nrp nrr oaa oae oak oam oan oao oap oar oea oee oem oen oeo oep oer oka oke okk oko okp okr om- oma ome omm omn omo omp omr on- ona one onk onn ono onp onr oo- ooa ook oom oon ooo oop oor op- opa ope opk opm opn opo opp opr or- ora ore ork orm orn oro orp orr p-p paa pae pak pam pan pao pap par pea pee pek pem pen peo pep per pka pke pkm pkn pko pkp pkr pma pme pmk pmm pmn pmo pmp pmr pn- pna pne pnk pnm pnn pno pnp pnr poa poe pok pom pon poo pop por ppa ppe ppk ppm ppn ppo ppp ppr pra pre prk prm prn pro prp prr ra- raa rae rak ram ran rao rap rar re- rea ree rek rem ren reo rep rer rke rkk rkm rko rkp rma rme rmm rmn rmo rmp rmr rna rnm rnn rno rnp rnr roa roe rok rom ron roo rop ror rpa rpe rpk rpm rpn rpo rpp rpr rra rrk rrm rrn rrp rrr