a-a a-t aaa aad aag aar aas aat ad- ada add adg adr ads adt ag- aga agd agg agr ags agt ar- ara ard arg arr ars art as- asa asd asg asr ass ast at- ata atd atg atr ats att daa dad dag dar das dat dda ddd ddg ddr dds ddt dga dgd dgg dgr dgs dgt dra drd drg drr drs drt dsa dsd dsg dsr dss dst dta dtd dtg dtr dts dtt g-d gaa gad gag gar gas gat gda gdd gdr gds gdt gga ggd ggg ggr ggs ggt gra grd grg grr grs grt gsa gsd gsg gsr gss gst gta gtd gtg gtr gts gtt ra- raa rad rag rar ras rat rda rdd rdg rdr rds rdt rga rgd rgg rgr rgs rgt rra rrd rrg rrr rrs rrt rsa rsd rsg rsr rss rst rta rtd rtg rtr rts rtt saa sad sag sar sas sat sda sdd sdg sdr sds sdt sga sgd sgg sgr sgs sgt sr- sra srd srg srr srs srt ss- ssa ssd ssg ssr sss sst sta std stg str sts stt taa tad tag tar tas tat tda tdd tdg tdr tds tdt tga tgg tgr tgs tgt tra trd trg trr trs trt tsa tsd tsg tsr tss tst tta ttd ttg ttr tts ttt