-er a-a aaa aae aao aap aar aas aav aea aee aeo aep aer aes aev aoa aoe aoo aop aor aos aov ap- apa ape apo app apr aps apv ar- ara are aro arp arr ars arv as- asa ase aso asp asr ass asv av- ava ave avo avp avr avs eaa eae eao eap ear eas eav eea eee eeo eep eer ees eev eo- eoa eoe eoo eop eor eos ep- epa epe epo epp epr eps era ere ero erp err ers erv es- esa ese eso esp esr ess esv eva eve evo evp evr evs evv oaa oae oao oap oar oas oav oea oee oeo oep oer oes oo- ooa ooo oop oor oos oov op- opa ope opo opp opr ops opv or- ora ore oro orp orr ors orv os- osa ose oso osp osr oss osv ov- ova ove ovo ovp ovs ovv p-p paa pae pao pap par pas pav pea pee peo pep per pes pev poa poe poo pop por pos pov ppa ppe ppo ppp ppr pps ppv pra pre pro prp prr prs prv ps- psa pse pso psp psr pss psv pva pve pvo pvp pvr pvs pvv ra- raa rae rao rap rar ras rav re- rea ree reo rep rer res rev roa roe roo rop ror ros rov rpa rpe rpo rpp rpr rps rpv rra rrp rrr rrs rsa rse rso rsp rsr rss rsv rva rve rvo rvp rvr rvs rvv saa sae sao sap sar sas sav se- sea see seo sep ser ses sev soa soe soo sop sor sos sov spa spe spo spp spr sps spv sr- sra sre sro srp srr srs srv ss- ssa sse sso ssp ssr sss ssv sva sve svo svp svr svs svv v-a v-e vaa vae vao vap var vas vav vea vee veo vep ver ves voa voe voo vop vor vos vov vpa vpe vpo vpp vpr vps vra vre vrp vrr vrs vsa vse vso vsp vsr vss vsv vva vvo vvr vvs vvv