a-a aaa aap aar aas aav ap- apa app apr aps apv ar- ara arp arr ars arv as- asa asp asr ass asv av- ava avp avr avs p-p paa pap par pas pav ppa ppp ppr pps ppv pra prp prr prs prv ps- psa psp psr pss psv pva pvp pvr pvs pvv ra- raa rap rar ras rav rpa rpp rpr rps rpv rra rrp rrr rrs rsa rsp rsr rss rsv rva rvp rvr rvs rvv saa sap sar sas sav spa spp spr sps spv sr- sra srp srr srs srv ss- ssa ssp ssr sss ssv sva svp svr svs svv v-a vaa vap var vas vav vpa vpp vpr vps vra vrp vrr vrs vsa vsp vsr vss vsv vva vvr vvs vvv