-er a-a aaa aae aam aan aao aap aar aea aee aem aen aeo aep aer ama ame amm amn amo amp amr an- ana ane anm ann ano anp anr aoa aoe aom aon aoo aop aor ap- apa ape apm apn apo app apr ar- ara are arm arn aro arp arr eaa eae eam ean eao eap ear eea eee eem een eeo eep eer em- ema eme emm emn emo emp emr en- ena ene enm enn eno enp enr eo- eoa eoe eom eon eoo eop eor ep- epa epe epm epn epo epp epr era ere erm ern ero erp err m-o m-r maa mae mam man mao map mar mea mee mem men meo mep mer mma mme mmm mmn mmo mmp mmr mna mne mnm mnn mno mnp mnr moa moe mom mon moo mop mor mpa mpe mpm mpn mpo mpp mpr mra mre mrm mrn mro mrp mrr naa nae nam nan nao nap nar ne- nea nee nem nen neo nep ner nma nme nmm nmn nmo nmp nmr nna nne nnm nnn nno nnp no- noa noe nom non noo nop nor npa npe npm npn npo npp npr nra nre nrm nrn nro nrp nrr oaa oae oam oan oao oap oar oea oee oem oen oeo oep oer om- oma ome omm omn omo omp omr on- ona one onn ono onp onr oo- ooa oom oon ooo oop oor op- opa ope opm opn opo opp opr or- ora ore orm orn oro orp orr p-p paa pae pam pan pao pap par pea pee pem pen peo pep per pma pme pmm pmn pmo pmp pmr pn- pna pne pnm pnn pno pnp pnr poa poe pom pon poo pop por ppa ppe ppm ppn ppo ppp ppr pra pre prm prn pro prp prr ra- raa rae ram ran rao rap rar re- rea ree rem ren reo rep rer rma rme rmm rmn rmo rmp rmr rna rnm rnn rno rnp rnr roa roe rom ron roo rop ror rpa rpe rpm rpn rpo rpp rpr rra rrm rrn rrp rrr