a-a a-t aaa aad aan aap aat aav ad- ada add adn adp adt adv an- ana and ann anp ant anv ap- apa apd apn app apt apv at- ata atd atn atp att atv av- ava avd avn avp avt daa dad dan dap dat dav dda ddd ddn ddp ddt dna dnd dnn dnp dnt dpa dpd dpn dpp dpt dpv dta dtd dtn dtp dtt dtv dva dvd dvn dvp dvt naa nad nan nap nat nav nda ndd ndn ndp ndt ndv nna nnn nnp nnt nnv npa npd npn npp npt npv nta ntd ntn ntp ntt ntv nva nvd nvn nvp nvt nvv p-p paa pad pan pap pat pav pda pdd pdn pdp pdt pdv pn- pna pnd pnn pnp pnt pnv ppa ppd ppn ppp ppt ppv pt- pta ptd ptn ptp ptt ptv pva pvd pvn pvp pvt pvv taa tad tan tap tat tav tda tdd tdn tdp tdt tdv tna tnd tnn tnp tnt tpa tpd tpn tpp tpt tpv tta ttd ttn ttp ttt ttv tva tvd tvn tvp tvt v-a vaa vad van vap vat vav vdd vdp vdt vdv vn- vna vnd vnp vnv vpa vpd vpn vpp vpt vta vtt vtv vva vvt vvv