a-a a-t aaa aar aas aat aav ar- ara arr ars art arv as- asa asr ass ast asv at- ata atr ats att atv av- ava avr avs avt ra- raa rar ras rat rav rra rrr rrs rrt rsa rsr rss rst rsv rta rtr rts rtt rtv rva rvr rvs rvt rvv saa sar sas sat sav sr- sra srr srs srt srv ss- ssa ssr sss sst ssv sta str sts stt stv sva svr svs svt svv taa tar tas tat tav tra trr trs trt trv tsa tsr tss tst tsv tta ttr tts ttt ttv tva tvr tvs tvt v-a vaa var vas vat vav vra vrr vrs vrt vsa vsr vss vst vsv vta vtr vts vtt vtv vva vvr vvs vvt vvv