-er a-a aaa aae aan aao aap aar aav aea aee aen aeo aep aer aev an- ana ane ann ano anp anr anv aoa aoe aon aoo aop aor aov ap- apa ape apn apo app apr apv ar- ara are arn aro arp arr arv av- ava ave avn avo avp avr eaa eae ean eao eap ear eav eea eee een eeo eep eer eev en- ena ene enn eno enp enr env eo- eoa eoe eon eoo eop eor ep- epa epe epn epo epp epr era ere ern ero erp err erv eva eve evn evo evp evr evv naa nae nan nao nap nar nav ne- nea nee nen neo nep ner nev nna nne nnn nno nnp nnv no- noa noe non noo nop nor nov npa npe npn npo npp npr npv nra nre nrn nro nrp nrr nrv nva nve nvn nvp nvv oaa oae oan oao oap oar oav oea oee oen oeo oep oer on- ona one onn ono onp onr oo- ooa oon ooo oop oor oov op- opa ope opn opo opp opr opv or- ora ore orn oro orp orr orv ov- ova ove ovo ovp ovv p-p paa pae pan pao pap par pav pea pee pen peo pep per pev pn- pna pne pnn pno pnp pnr pnv poa poe pon poo pop por pov ppa ppe ppn ppo ppp ppr ppv pra pre prn pro prp prr prv pva pve pvn pvo pvp pvr pvv ra- raa rae ran rao rap rar rav re- rea ree ren reo rep rer rev rna rnn rno rnp rnr rnv roa roe ron roo rop ror rov rpa rpe rpn rpo rpp rpr rpv rra rrn rrp rrr rva rve rvn rvo rvp rvr rvv v-a v-e vaa vae van vao vap var vav vea vee ven veo vep ver vn- vna vno vnp vnr vnv voa voe von voo vop vor vov vpa vpe vpn vpo vpp vpr vra vre vrn vrp vrr vva vvo vvr vvv