-al -er a-a a-b a-i a-t aaa aab aad aae aaf aag aai aak aal aar aas aat ab- aba abb abd abe abf abg abi abk abl abr abs abt ad- ada adb add ade adf adg adi adk adl adr ads adt aea aeb aed aee aef aeg aei aek ael aer aes aet af- afa afb afd afe aff afg afi afk afl afr afs aft ag- aga agb agd age agf agg agi agk agl agr ags agt ai- aia aib aid aie aif aig aii aik ail air ais ait aka akb akd ake akg aki akk akl akr aks al- ala alb ald ale alf alg ali alk all alr als alt ar- ara arb ard are arf arg ari ark arl arr ars art as- asa asb asd ase asf asg asi ask asl asr ass ast at- ata atb atd ate atf atg ati atl atr ats att baa bab bad bae baf bag bai bak bal bar bas bat bba bbb bbd bbe bbf bbg bbi bbk bbl bbr bbs bbt bda bdb bdd bde bdf bdg bdi bdk bdl bdr bds bdt be- bea beb bed bee bef beg bei bek bel ber bes bet bfa bfb bfd bfe bff bfg bfi bfl bfr bfs bft bga bgb bgd bge bgf bgg bgi bgk bgl bgr bgs bgt bi- bia bib bid bie bif big bii bik bil bir bis bit bka bkb bke bkf bkg bkk bkl bkr bks bkt bla blb bld ble blf blg bli blk bll blr bls blt bra brb brd bre brf brg bri brk brl brr brs brt bsa bsb bsd bse bsf bsg bsi bsk bsl bsr bss bst bta btb btd bte btf btg bti btk btl btr bts btt daa dab dad dae daf dag dai dak dal dar das dat dba dbb dbd dbe dbf dbg dbi dbk dbl dbr dbs dbt dda ddb ddd dde ddf ddg ddi ddk ddl ddr dds ddt de- dea deb ded dee def deg dei dek del der des det dfa dfb dfd dfe dff dfg dfi dfk dfl dfr dfs dft dga dgd dge dgf dgg dgi dgk dgl dgr dgs dgt di- dia dib did die dif dig dii dik dil dir dis dit dka dkb dke dkg dki dkk dkl dkr dks dkt dl- dla dlb dld dle dlf dlg dli dlk dll dlr dls dlt dra drb drd dre drg dri drk drl drr drs drt dsa dsb dsd dse dsf dsg dsi dsk dsl dsr dss dst dta dtb dtd dte dtf dtg dti dtk dtl dtr dts dtt eaa eab ead eae eaf eag eai eak eal ear eas eat eba ebb ebd ebe ebf ebg ebi ebk ebl ebr ebs ebt ed- eda edb edd ede edf edg edi edk edl edr eds edt eea eeb eed eee eef eeg eek eel eer ees eet ef- efa efb efd efe eff efg efi efl efr efs eft ega egb egd ege egf egg egi egl egr egs egt eia eib eid eie eif eig eii eik eil eir eis eit eka ekb ekd eke ekf ekg eki ekl ekr eks ekt ela elb eld ele elf elg eli elk ell elr els elt era erb erd ere erf erg eri erk erl err ers ert es- esa esb esd ese esf esg esi esk esl esr ess est eta etb etd ete etf etg eti etk etl etr ets ett faa fab fad fae faf fag fai fak fal far fas fat fba fbb fbd fbe fbf fbg fbi fbk fbl fbr fbs fbt fda fdb fdd fde fdf fdg fdi fdk fdl fdr fds fdt fea feb fed fee fef feg fei fek fel fer fes fet ffa ffd ffe fff ffg ffi ffk ffl ffr ffs fft fga fgb fgd fge fgf fgg fgi fgl fgr fgs fgt fia fib fid fie fif fig fii fik fil fir fis fit fka fkb fkf fkg fki fkk fkl fkt fla flb fld fle flf flg fli fll flr fls flt fra frb frd fre frf frg fri frk frl frr frs frt fsa fsb fsd fse fsf fsg fsi fsk fsl fsr fss fst fta ftb ftd fte ftf ftg fti ftk ftl ftr fts ftt g-d gaa gab gad gae gaf gag gai gak gal gar gas gat gba gbd gbe gbf gbg gbi gbk gbl gbr gbs gbt gda gdb gdd gde gdf gdi gdk gdl gdr gds gdt ge- gea geb ged gee gef geg gei gek gel ger ges get gfa gfb gfd gfe gff gfi gfk gfl gfr gfs gft gga ggb ggd ggg ggi ggr ggs ggt gia gib gid gie gif gig gii gik gil gir gis git gka gkb gkd gks gkt gla glb gld gle glf glg gli glk gll glr gls glt gra grb grd gre grf grg gri grk grl grr grs grt gsa gsb gsd gse gsf gsg gsi gsk gsl gsr gss gst gta gtb gtd gte gtf gtg gti gtk gtl gtr gts gtt i-d i-f ia- iaa iab iad iae iaf iag iai ial iar ias iat iba ibb ibd ibe ibf ibg ibi ibk ibl ibr ibs ibt ida idb idd ide idf idg idi idk idl idr ids idt ie- iea ied iee ief ieg iei iek iel ier ies iet ifa ifb ifd ife iff ifg ifi ifl ifr ifs ift iga igb igd ige igf igg igi igk igl igr igs igt iia iib iid iie iif iii iil iir iis iit ika ikb ike ikf iki ikk ikl ikr iks ikt il- ila ilb ild ile ilf ilg ili ilk ill ilr ils ilt ir- ira irb ird ire irf irg iri irk irl irr irs irt is- isa isb isd ise isf isg isi isk isl isr iss ist ita itb itd ite itf itg iti itk itl its itt k-t ka- kaa