a-a a-i a-t aaa aaf aag aai aao aar aat aau af- afa aff afg afi afo afr aft afu ag- aga agf agg agi ago agr agt agu ai- aia aif aig aii aio air ait aiu aoa aof aog aoi aoo aor aot aou ar- ara arf arg ari aro arr art aru at- ata atf atg ati ato atr att atu au- aua auf aug aui auo aur aut faa faf fag fai fao far fat fau ffa fff ffg ffi ffo ffr fft ffu fga fgf fgg fgi fgr fgt fia fif fig fii fir fit fiu foa fof fog foi foo for fot fou fra frf frg fri fro frr frt fru fta ftf ftg fti fto ftr ftt ftu fua fuf fug fui fuo fur fut fuu gaa gaf gag gai gao gar gat gau gfa gff gfi gfo gfr gft gga ggg ggi ggo ggr ggt ggu gia gif gig gii gio gir git giu goa gof gog goi goo gor got gou gra grf grg gri gro grr grt gru gta gtf gtg gti gto gtr gtt gtu gu- gua guf gug gui guo gur gut guu i-f ia- iaa iaf iag iai iao iar iat iau ifa iff ifg ifi ifo ifr ift ifu iga igf igg igi igo igr igt igu iia iif iii iio iir iit iiu io- ioa iof iog ioi ioo ior iot iou ir- ira irf irg iri iro irr irt iru ita itf itg iti ito itt itu iu- iua iug iui iur iut o-i oaa oaf oag oai oao oar oat oau of- ofa off ofg ofi ofo ofr oft ofu oga ogf ogg ogi ogo ogt oia oif oii oio oir oit oiu oo- ooa oof oog ooi ooo oor oot or- ora orf org ori oro orr ort oru ot- ota otf otg oti oto otr ott otu ou- oua ouf oui ouo our out ra- raa raf rag rai rao rar rat rau rfa rff rfg rfi rfo rfr rft rfu rga rgf rgg rgi rgo rgr rgt ria rif rig rii rio rir rit roa rof rog roi roo ror rot rou rra rrf rrg rri rrr rrt rru rta rtf rtg rti rto rtr rtt rtu rua ruf rug rui ruo rur rut ruu taa taf tag tai tao tar tat tau tfa tff tfg tfi tfo tfr tft tfu tga tgf tgg tgi tgo tgr tgt tgu tia tif tig tii tio tir tit tiu to- toa tof tog toi too tor tot tou tra trf trg tri tro trr trt tru tta ttf ttg tti tto ttr ttt ttu tua tuf tug tui tuo tur tut tuu ua- uaa uaf uag uai uao uar uat uau ufa uff ufg ufi ufo ufr uft ufu uga ugf ugg ugi ugo ugr ugt ugu uia uif uig uii uio uir uit uiu uoa uog uoo uor uot ur- ura urf urg uri uro urr urt uru uta utf uti uto utr utt utu uua uug uur uut uuu