-er a-a a-i a-t aaa aad aae aaf aag aai aao aar aat ad- ada add ade adf adg adi ado adr adt aea aed aee aef aeg aei aeo aer aet af- afa afd afe aff afg afi afo afr aft ag- aga agd age agf agg agi ago agr agt ai- aia aid aie aif aig aii aio air ait aoa aod aoe aof aog aoi aoo aor aot ar- ara ard are arf arg ari aro arr art at- ata atd ate atf atg ati ato atr att daa dad dae daf dag dai dao dar dat dda ddd dde ddf ddg ddi ddo ddr ddt de- dea ded dee def deg dei deo der det dfa dfd dfe dff dfg dfi dfo dfr dft dga dgd dge dgf dgg dgi dgr dgt di- dia did die dif dig dii dio dir dit doa dod doe dof dog doi doo dor dot dra drd dre drg dri dro drr drt dta dtd dte dtf dtg dti dto dtr dtt eaa ead eae eaf eag eai eao ear eat ed- eda edd ede edf edg edi edo edr edt eea eed eee eef eeg eeo eer eet ef- efa efd efe eff efg efi efo efr eft ega egd ege egf egg egi ego egr egt eia eid eie eif eig eii eio eir eit eo- eoa eod eoe eof eog eoi eoo eor eot era erd ere erf erg eri ero err ert eta etd ete etf etg eti eto etr ett faa fad fae faf fag fai fao far fat fda fdd fde fdf fdg fdi fdo fdr fdt fea fed fee fef feg fei feo fer fet ffa ffd ffe fff ffg ffi ffo ffr fft fga fgd fge fgf fgg fgi fgr fgt fia fid fie fif fig fii fir fit foa foe fof fog foi foo for fot fra frd fre frf frg fri fro frr frt fta ftd fte ftf ftg fti fto ftr ftt g-d gaa gad gae gaf gag gai gao gar gat gda gdd gde gdf gdi gdo gdr gdt ge- gea ged gee gef geg gei geo ger get gfa gfd gfe gff gfi gfo gfr gft gga ggd ggg ggi ggo ggr ggt gia gid gie gif gig gii gio gir git goa god goe gof gog goi goo gor got gra grd gre grf grg gri gro grr grt gta gtd gte gtf gtg gti gto gtr gtt i-d i-f ia- iaa iad iae iaf iag iai iao iar iat ida idd ide idf idg idi ido idr idt ie- iea ied iee ief ieg iei ier iet ifa ifd ife iff ifg ifi ifo ifr ift iga igd ige igf igg igi igo igr igt iia iid iie iif iii iio iir iit io- ioa iod ioe iof iog ioi ioo ior iot ir- ira ird ire irf irg iri iro irr irt ita itd ite itf itg iti ito itt o-i oaa oad oae oaf oag oai oao oar oat oda odd ode odf odg odi odo odr odt oea oed oee oef oeg oei oeo oer oet of- ofa ofd ofe off ofg ofi ofo ofr oft oga ogd oge ogf ogg ogi ogo ogt oia oid oie oif oii oio oir oit oo- ooa ood oof oog ooi ooo oor oot or- ora ord ore orf org ori oro orr ort ot- ota otd ote otf otg oti oto otr ott ra- raa rad rae raf rag rai rao rar rat rda rdd rde rdf rdg rdi rdo rdr rdt re- rea red ree ref reg rei reo rer ret rfa rfd rfe rff rfg rfi rfo rfr rft rga rgd rge rgf rgg rgi rgo rgr rgt ria rid rie rif rig rii rio rir rit roa rod roe rof rog roi roo ror rot rra rrd rrf rrg rri rrr rrt rta rtd rte rtf rtg rti rto rtr rtt taa tad tae taf tag tai tao tar tat tda tdd tde tdf tdg tdi tdo tdr tdt te- tea ted tee tef teg tei teo ter tet tfa tfd tfe tff tfg tfi tfo tfr tft tga tge tgf tgg tgi tgo tgr tgt tia tid tie tif tig tii tio tir tit to- toa tod toe tof tog toi too tor tot tra trd tre trf trg tri tro trr trt tta ttd tte ttf ttg tti tto ttr ttt