a-a a-i a-t aaa aag aai aao aas aat ag- aga agg agi ago ags agt ai- aia aig aii aio ais ait aoa aog aoi aoo aos aot as- asa asg asi aso ass ast at- ata atg ati ato ats att gaa gag gai gao gas gat gga ggg ggi ggo ggs ggt gia gig gii gio gis git goa gog goi goo gos got gsa gsg gsi gso gss gst gta gtg gti gto gts gtt ia- iaa iag iai iao ias iat iga igg igi igo igs igt iia iii iio iis iit io- ioa iog ioi ioo ios iot is- isa isg isi iso iss ist ita itg iti ito its itt o-i oaa oag oai oao oas oat oga ogg ogi ogo ogs ogt oia oii oio ois oit oo- ooa oog ooi ooo oos oot os- osa osg osi oso oss ost ot- ota otg oti oto ots ott saa sag sai sao sas sat sga sgg sgi sgo sgs sgt sia sig sii sio sis sit soa sog soi soo sos sot ss- ssa ssg ssi sso sss sst sta stg sti sto sts stt taa tag tai tao tas tat tga tgg tgi tgo tgs tgt tia tig tii tio tis tit to- toa tog toi too tos tot tsa tsg tsi tso tss tst tta ttg tti tto tts ttt