a-a a-t aaa aad aan aar aat aav ad- ada add adn adr adt adv an- ana and ann anr ant anv ar- ara ard arn arr art arv at- ata atd atn atr att atv av- ava avd avn avr avt daa dad dan dar dat dav dda ddd ddn ddr ddt dna dnd dnn dnr dnt dra drd drn drr drt drv dta dtd dtn dtr dtt dtv dva dvd dvn dvr dvt naa nad nan nar nat nav nda ndd ndn ndr ndt ndv nna nnn nnt nnv nra nrd nrn nrr nrt nrv nta ntd ntn ntr ntt ntv nva nvd nvn nvt nvv ra- raa rad ran rar rat rav rda rdd rdn rdr rdt rdv rna rnd rnn rnr rnt rnv rra rrd rrn rrr rrt rta rtd rtn rtr rtt rtv rva rvd rvn rvr rvt rvv taa tad tan tar tat tav tda tdd tdn tdr tdt tdv tna tnd tnn tnr tnt tra trd trn trr trt trv tta ttd ttn ttr ttt ttv tva tvd tvn tvr tvt v-a vaa vad van var vat vav vdd vdr vdt vdv vn- vna vnd vnr vnv vra vrd vrn vrr vrt vta vtr vtt vtv vva vvr vvt vvv