a-a a-i a-t aaa aaf aag aai aap aat af- afa aff afg afi afp aft ag- aga agf agg agi agp agt ai- aia aif aig aii aip ait ap- apa apf apg api app apt at- ata atf atg ati atp att faa faf fag fai fap fat ffa fff ffg ffi ffp fft fga fgf fgg fgi fgp fgt fia fif fig fii fip fit fpa fpg fpi fpp fpt fta ftf ftg fti ftp ftt g-p gaa gaf gag gai gap gat gfa gff gfi gfp gft gga ggg ggi ggp ggt gia gif gig gii gip git gpa gpf gpg gpi gpp gpt gta gtf gtg gti gtp gtt i-f ia- iaa iaf iag iai iap iat ifa iff ifg ifi ifp ift iga igf igg igi igp igt iia iif iii iip iit ipa ipf ipg ipi ipp ipt ita itf itg iti itp itt p-p paa paf pag pai pap pat pfa pff pfg pfi pfp pft pga pgf pgg pgi pgp pgt pia pif pig pii pip pit ppa ppf ppg ppi ppp ppt pt- pta ptf ptg pti ptp ptt taa taf tag tai tap tat tfa tff tfg tfi tfp tft tga tgf tgg tgi tgp tgt tia tif tig tii tip tit tpa tpf tpg tpi tpp tpt tta ttf ttg tti ttp ttt