a-a aaa aad aak aar aas aav ad- ada add adk adr ads adv aka akd akk akr aks akv ar- ara ard ark arr ars arv as- asa asd ask asr ass asv av- ava avd avk avr avs daa dad dak dar das dav dda ddd ddk ddr dds dka dkk dkr dks dra drd drk drr drs drv dsa dsd dsk dsr dss dsv dva dvd dvk dvr dvs ka- kaa kad kak kar kas kav kda kdk kdr kds kkk kkr kks kkv kra krd krk krr krs krv ksa ksd ksk ksr kss ksv kva kvk kvr kvs kvv ra- raa rad rak rar ras rav rda rdd rdr rds rdv rkk rks rkv rra rrd rrk rrr rrs rsa rsd rsk rsr rss rsv rva rvd rvr rvs rvv saa sad sak sar sas sav sda sdd sdk sdr sds sdv sk- ska skd skk skr sks sr- sra srd srk srr srs srv ss- ssa ssd ssk ssr sss ssv sva svd svk svr svs svv v-a vaa vad vak var vas vav vdd vdk vdr vds vdv vka vra vrd vrk vrr vrs vsa vsd vsk vsr vss vsv vva vvr vvs vvv