-er a-a a-i a-t aaa aad aae aaf aag aai aap aar aat ad- ada add ade adf adg adi adp adr adt aea aed aee aef aeg aei aep aer aet af- afa afd afe aff afg afi afp afr aft ag- aga agd age agf agg agi agp agr agt ai- aia aid aie aif aig aii aip air ait ap- apa apd ape apf apg api app apr apt ar- ara ard are arf arg ari arp arr art at- ata atd ate atf atg ati atp atr att daa dad dae daf dag dai dap dar dat dda ddd dde ddf ddg ddi ddp ddr ddt de- dea ded dee def deg dei dep der det dfa dfd dfe dff dfg dfi dfp dfr dft dga dgd dge dgf dgg dgi dgp dgr dgt di- dia did die dif dig dii dip dir dit dpa dpd dpe dpf dpg dpi dpp dpr dpt dra drd dre drg dri drp drr drt dta dtd dte dtf dtg dti dtp dtr dtt eaa ead eae eaf eag eai eap ear eat ed- eda edd ede edf edg edi edp edr edt eea eed eee eef eeg eep eer eet ef- efa efd efe eff efg efi efp efr eft ega egd ege egf egg egi egp egr egt eia eid eie eif eig eii eip eir eit ep- epa epd epe epf epg epi epp epr ept era erd ere erf erg eri erp err ert eta etd ete etf etg eti etp etr ett faa fad fae faf fag fai fap far fat fda fdd fde fdf fdg fdi fdp fdr fdt fea fed fee fef feg fei fep fer fet ffa ffd ffe fff ffg ffi ffp ffr fft fga fgd fge fgf fgg fgi fgp fgr fgt fia fid fie fif fig fii fip fir fit fpa fpd fpe fpg fpi fpp fpr fpt fra frd fre frf frg fri frp frr frt fta ftd fte ftf ftg fti ftp ftr ftt g-d g-p gaa gad gae gaf gag gai gap gar gat gda gdd gde gdf gdi gdp gdr gdt ge- gea ged gee gef geg gei gep ger get gfa gfd gfe gff gfi gfp gfr gft gga ggd ggg ggi ggp ggr ggt gia gid gie gif gig gii gip gir git gpa gpd gpe gpf gpg gpi gpp gpr gpt gra grd gre grf grg gri grp grr grt gta gtd gte gtf gtg gti gtp gtr gtt i-d i-f ia- iaa iad iae iaf iag iai iap iar iat ida idd ide idf idg idi idp idr idt ie- iea ied iee ief ieg iei iep ier iet ifa ifd ife iff ifg ifi ifp ifr ift iga igd ige igf igg igi igp igr igt iia iid iie iif iii iip iir iit ipa ipd ipe ipf ipg ipi ipp ipr ipt ir- ira ird ire irf irg iri irp irr irt ita itd ite itf itg iti itp itt p-p paa pad pae paf pag pai pap par pat pda pdd pde pdf pdg pdi pdp pdr pdt pea ped pee pef peg pei pep per pet pfa pfd pfe pff pfg pfi pfp pfr pft pga pgd pge pgf pgg pgi pgp pgr pgt pia pid pie pif pig pii pip pir pit ppa ppd ppe ppf ppg ppi ppp ppr ppt pra prd pre prf prg pri prp prr prt pt- pta ptd pte ptf ptg pti ptp ptr ptt ra- raa rad rae raf rag rai rap rar rat rda rdd rde rdf rdg rdi rdp rdr rdt re- rea red ree ref reg rei rep rer ret rfa rfd rfe rff rfg rfi rfp rfr rft rga rgd rge rgf rgg rgi rgp rgr rgt ria rid rie rif rig rii rip rir rit rpa rpd rpe rpf rpg rpi rpp rpr rpt rra rrd rrf rrg rri rrp rrr rrt rta rtd rte rtf rtg rti rtp rtr rtt taa tad tae taf tag tai tap tar tat tda tdd tde tdf tdg tdi tdp tdr tdt te- tea ted tee tef teg tei tep ter tet tfa tfd tfe tff tfg tfi tfp tfr tft tga tge tgf tgg tgi tgp tgr tgt tia tid tie tif tig tii tip tir tit tpa tpd tpe tpf tpg tpi tpp tpr tpt tra trd tre trf trg tri trp trr trt tta ttd tte ttf ttg tti ttp ttr ttt