a-a a-i aaa aai aar aas aav ai- aia aii air ais aiv ar- ara ari arr ars arv as- asa asi asr ass asv av- ava avi avr avs i-v ia- iaa iai iar ias iav iia iii iir iis ir- ira iri irr irs irv is- isa isi isr iss isv iva ivi ivr ivs ivv ra- raa rai rar ras rav ria rii rir ris riv rra rri rrr rrs rsa rsi rsr rss rsv rva rvi rvr rvs rvv saa sai sar sas sav sia sii sir sis siv sr- sra sri srr srs srv ss- ssa ssi ssr sss ssv sva svi svr svs svv v-a vaa vai var vas vav vi- via vii vir vis viv vra vri vrr vrs vsa vsi vsr vss vsv vva vvi vvr vvs vvv