-al -ol a-a a-b a-t aaa aab aad aag aal aao aat ab- aba abb abd abg abl abo abt ad- ada adb add adg adl ado adt ag- aga agb agd agg agl ago agt al- ala alb ald alg all alo alt aoa aob aod aog aol aoo aot at- ata atb atd atg atl ato att baa bab bad bag bal bao bat bba bbb bbd bbg bbl bbo bbt bda bdb bdd bdg bdl bdo bdt bga bgb bgd bgg bgl bgo bgt bla blb bld blg bll blo blt boa bob bod bog bol boo bot bta btb btd btg btl bto btt daa dab dad dag dal dao dat dba dbb dbd dbg dbl dbo dbt dda ddb ddd ddg ddl ddo ddt dga dgd dgg dgl dgt dl- dla dlb dld dlg dll dlo dlt doa dob dod dog dol doo dot dta dtb dtd dtg dtl dto dtt g-d gaa gab gad gag gal gao gat gba gbd gbg gbl gbo gbt gda gdb gdd gdl gdo gdt gga ggb ggd ggg ggo ggt gla glb gld glg gll glo glt goa gob god gog gol goo got gta gtb gtd gtg gtl gto gtt la- laa lab lad lag lal lao lat lba lbb lbd lbg lbl lbo lbt lda ldb ldd ldg ldl ldo ldt lga lgb lgd lgg lgl lgo lgt lla llb lld llg lll llo llt loa lob lod log lol loo lot lta ltb ltd ltg ltl lto ltt oaa oab oad oag oal oao oat ob- oba obb obd obg obl obo obt oda odb odd odg odl odo odt oga ogd ogg ogl ogo ogt ola olb old olg oll olo olt oo- ooa oob ood oog ool ooo oot ot- ota otb otd otg otl oto ott taa tab tad tag tal tao tat tba tbb tbd tbg tbl tbo tbt tda tdb tdd tdg tdl tdo tdt tga tgb tgg tgl tgo tgt tla tld tlg tll tlo tlt to- toa tob tod tog tol too tot tta ttb ttd ttg ttl tto ttt