a-a aaa aan aap aas aav an- ana ann anp ans anv ap- apa apn app aps apv as- asa asn asp ass asv av- ava avn avp avs naa nan nap nas nav nna nnn nnp nns nnv npa npn npp nps npv nsa nsn nsp nss nsv nva nvn nvp nvv p-p paa pan pap pas pav pn- pna pnn pnp pns pnv ppa ppn ppp pps ppv ps- psa psn psp pss psv pva pvn pvp pvs pvv saa san sap sas sav sna snn snp sns snv spa spn spp sps spv ss- ssa ssn ssp sss ssv sva svn svp svs svv v-a vaa van vap vas vav vn- vna vnp vns vnv vpa vpn vpp vps vsa vsn vsp vss vsv vva vvs vvv