a-a a-t aaa aan aap aat aav an- ana ann anp ant anv ap- apa apn app apt apv at- ata atn atp att atv av- ava avn avp avt naa nan nap nat nav nna nnn nnp nnt nnv npa npn npp npt npv nta ntn ntp ntt ntv nva nvn nvp nvt nvv p-p paa pan pap pat pav pn- pna pnn pnp pnt pnv ppa ppn ppp ppt ppv pt- pta ptn ptp ptt ptv pva pvn pvp pvt pvv taa tan tap tat tav tna tnn tnp tnt tpa tpn tpp tpt tpv tta ttn ttp ttt ttv tva tvn tvp tvt v-a vaa van vap vat vav vn- vna vnp vnv vpa vpn vpp vpt vta vtt vtv vva vvt vvv