a-a a-t aaa aan aar aat aav an- ana ann anr ant anv ar- ara arn arr art arv at- ata atn atr att atv av- ava avn avr avt naa nan nar nat nav nna nnn nnt nnv nra nrn nrr nrt nrv nta ntn ntr ntt ntv nva nvn nvt nvv ra- raa ran rar rat rav rna rnn rnr rnt rnv rra rrn rrr rrt rta rtn rtr rtt rtv rva rvn rvr rvt rvv taa tan tar tat tav tna tnn tnr tnt tra trn trr trt trv tta ttn ttr ttt ttv tva tvn tvr tvt v-a vaa van var vat vav vn- vna vnr vnv vra vrn vrr vrt vta vtr vtt vtv vva vvr vvt vvv