-er a-a aaa aae aaf aam aan aao aap aar aea aee aef aem aen aeo aep aer af- afa afe aff afm afn afo afp afr ama ame amf amm amn amo amp amr an- ana ane anf anm ann ano anp anr aoa aoe aof aom aon aoo aop aor ap- apa ape apf apm apn apo app apr ar- ara are arf arm arn aro arp arr eaa eae eaf eam ean eao eap ear eea eee eef eem een eeo eep eer ef- efa efe eff efm efo efp efr em- ema eme emf emm emn emo emp emr en- ena ene enf enm enn eno enp enr eo- eoa eoe eof eom eon eoo eop eor ep- epa epe epf epm epn epo epp epr era ere erf erm ern ero erp err faa fae faf fam fan fao fap far fea fee fef fem fen feo fep fer ffa ffe fff ffm ffn ffo ffp ffr fma fme fmf fmm fmn fmo fmp fmr fna fne fnf fnm fnn fnp fnr foa foe fof fom fon foo fop for fpa fpe fpm fpn fpo fpp fpr fra fre frf frm frn fro frp frr m-f m-o m-r maa mae maf mam man mao map mar mea mee mef mem men meo mep mer mfa mfe mff mfm mfn mfo mfp mfr mma mme mmf mmm mmn mmo mmp mmr mna mne mnf mnm mnn mno mnp mnr moa moe mof mom mon moo mop mor mpa mpe mpf mpm mpn mpo mpp mpr mra mre mrf mrm mrn mro mrp mrr naa nae naf nam nan nao nap nar ne- nea nee nef nem nen neo nep ner nfa nfe nff nfn nfo nfp nfr nma nme nmm nmn nmo nmp nmr nna nne nnf nnm nnn nno nnp no- noa noe nof nom non noo nop nor npa npe npf npm npn npo npp npr nra nre nrf nrm nrn nro nrp nrr oaa oae oaf oam oan oao oap oar oea oee oef oem oen oeo oep oer of- ofa ofe off ofm ofn ofo ofp ofr om- oma ome omf omm omn omo omp omr on- ona one onf onn ono onp onr oo- ooa oof oom oon ooo oop oor op- opa ope opf opm opn opo opp opr or- ora ore orf orm orn oro orp orr p-p paa pae paf pam pan pao pap par pea pee pef pem pen peo pep per pfa pfe pff pfm pfn pfo pfp pfr pma pme pmf pmm pmn pmo pmp pmr pn- pna pne pnf pnm pnn pno pnp pnr poa poe pof pom pon poo pop por ppa ppe ppf ppm ppn ppo ppp ppr pra pre prf prm prn pro prp prr ra- raa rae raf ram ran rao rap rar re- rea ree ref rem ren reo rep rer rfa rfe rff rfm rfn rfo rfp rfr rma rme rmf rmm rmn rmo rmp rmr rna rnm rnn rno rnp rnr roa roe rof rom ron roo rop ror rpa rpe rpf rpm rpn rpo rpp rpr rra rrf rrm rrn rrp rrr