-al -ol a-a a-b a-t aaa aab aad aae aaf aag aal aao aat ab- aba abb abd abe abf abg abl abo abt ad- ada adb add ade adf adg adl ado adt aea aeb aed aee aef aeg ael aeo aet af- afa afb afd afe aff afg afl afo aft ag- aga agb agd age agf agg agl ago agt al- ala alb ald ale alf alg all alo alt aoa aob aod aoe aof aog aol aoo aot at- ata atb atd ate atf atg atl ato att baa bab bad bae baf bag bal bao bat bba bbb bbd bbe bbf bbg bbl bbo bbt bda bdb bdd bde bdf bdg bdl bdo bdt be- bea beb bed bee bef beg bel beo bet bfa bfb bfd bfe bff bfg bfl bfo bft bga bgb bgd bge bgf bgg bgl bgo bgt bla blb bld ble blf blg bll blo blt boa bob bod boe bof bog bol boo bot bta btb btd bte btf btg btl bto btt daa dab dad dae daf dag dal dao dat dba dbb dbd dbe dbf dbg dbl dbo dbt dda ddb ddd dde ddf ddg ddl ddo ddt de- dea deb ded dee def deg del deo det dfa dfb dfd dfe dff dfg dfl dfo dft dga dgd dge dgf dgg dgl dgt dl- dla dlb dld dle dlf dlg dll dlo dlt doa dob dod doe dof dog dol doo dot dta dtb dtd dte dtf dtg dtl dto dtt eaa eab ead eae eaf eag eal eao eat eba ebb ebd ebe ebf ebg ebl ebo ebt ed- eda edb edd ede edf edg edl edo edt eea eeb eed eee eef eeg eel eeo eet ef- efa efb efd efe eff efg efl efo eft ega egb egd ege egf egg egl ego egt ela elb eld ele elf elg ell elo elt eo- eoa eob eod eoe eof eog eol eoo eot eta etb etd ete etf etg etl eto ett faa fab fad fae faf fag fal fao fat fba fbb fbd fbe fbf fbg fbl fbo fbt fda fdb fdd fde fdf fdg fdl fdo fdt fea feb fed fee fef feg fel feo fet ffa ffd ffe fff ffg ffl ffo fft fga fgb fgd fge fgf fgg fgl fgt fla flb fld fle flf flg fll flo flt foa fob foe fof fog fol foo fot fta ftb ftd fte ftf ftg ftl fto ftt g-d gaa gab gad gae gaf gag gal gao gat gba gbd gbe gbf gbg gbl gbo gbt gda gdb gdd gde gdf gdl gdo gdt ge- gea geb ged gee gef geg gel geo get gfa gfb gfd gfe gff gfl gfo gft gga ggb ggd ggg ggo ggt gla glb gld gle glf glg gll glo glt goa gob god goe gof gog gol goo got gta gtb gtd gte gtf gtg gtl gto gtt la- laa lab lad lae laf lag lal lao lat lba lbb lbd lbe lbf lbg lbl lbo lbt lda ldb ldd lde ldf ldg ldl ldo ldt lea leb led lee lef leg lel leo let lfa lfb lfd lfe lff lfg lfl lfo lft lga lgb lgd lge lgf lgg lgl lgo lgt lla llb lld lle llf llg lll llo llt loa lob lod loe lof log lol loo lot lta ltb ltd lte ltf ltg ltl lto ltt oaa oab oad oae oaf oag oal oao oat ob- oba obb obd obe obf obg obl obo obt oda odb odd ode odf odg odl odo odt oea oeb oed oee oef oeg oel oeo oet of- ofa ofb ofd ofe off ofg ofl ofo oft oga ogd oge ogf ogg ogl ogo ogt ola olb old ole olf olg oll olo olt oo- ooa oob ood oof oog ool ooo oot ot- ota otb otd ote otf otg otl oto ott taa tab tad tae taf tag tal tao tat tba tbb tbd tbe tbf tbg tbl tbo tbt tda tdb tdd tde tdf tdg tdl tdo tdt te- tea teb ted tee tef teg tel teo tet tfa tfb tfd tfe tff tfg tfl tfo tft tga tgb tge tgf tgg tgl tgo tgt tla tld tle tlf tlg tll tlo tlt to- toa tob tod toe tof tog tol too tot tta ttb ttd tte ttf ttg ttl tto ttt