a-a aaa aad aan aao aap aav ad- ada add adn ado adp adv an- ana and ann ano anp anv aoa aod aon aoo aop aov ap- apa apd apn apo app apv av- ava avd avn avo avp daa dad dan dao dap dav dda ddd ddn ddo ddp dna dnd dnn dno dnp doa dod don doo dop dov dpa dpd dpn dpo dpp dpv dva dvd dvn dvp naa nad nan nao nap nav nda ndd ndn ndo ndp ndv nna nnn nno nnp nnv no- noa nod non noo nop nov npa npd npn npo npp npv nva nvd nvn nvp nvv oaa oad oan oao oap oav oda odd odn odo odp odv on- ona ond onn ono onp oo- ooa ood oon ooo oop oov op- opa opd opn opo opp opv ov- ova ovd ovo ovp ovv p-p paa pad pan pao pap pav pda pdd pdn pdo pdp pdv pn- pna pnd pnn pno pnp pnv poa pod pon poo pop pov ppa ppd ppn ppo ppp ppv pva pvd pvn pvo pvp pvv v-a vaa vad van vao vap vav vdd vdo vdp vdv vn- vna vnd vno vnp vnv voa vod von voo vop vov vpa vpd vpn vpo vpp vva vvo vvv