a-a a-t aaa aad aan aar aas aat ad- ada add adn adr ads adt an- ana and ann anr ans ant ar- ara ard arn arr ars art as- asa asd asn asr ass ast at- ata atd atn atr ats att daa dad dan dar das dat dda ddd ddn ddr dds ddt dna dnd dnn dnr dns dnt dra drd drn drr drs drt dsa dsd dsn dsr dss dst dta dtd dtn dtr dts dtt naa nad nan nar nas nat nda ndd ndn ndr nds ndt nna nnn nns nnt nra nrd nrn nrr nrs nrt nsa nsd nsn nsr nss nst nta ntd ntn ntr nts ntt ra- raa rad ran rar ras rat rda rdd rdn rdr rds rdt rna rnd rnn rnr rns rnt rra rrd rrn rrr rrs rrt rsa rsd rsn rsr rss rst rta rtd rtn rtr rts rtt saa sad san sar sas sat sda sdd sdn sdr sds sdt sna snd snn snr sns snt sr- sra srd srn srr srs srt ss- ssa ssd ssn ssr sss sst sta std stn str sts stt taa tad tan tar tas tat tda tdd tdn tdr tds tdt tna tnd tnn tnr tns tnt tra trd trn trr trs trt tsa tsd tsn tsr tss tst tta ttd ttn ttr tts ttt