-al -ol a-a a-b a-t a-z aaa aab aad aaf aal aao aat aaz ab- aba abb abd abf abl abo abt abz ad- ada adb add adf adl ado adt adz af- afa afb afd aff afl afo aft afz al- ala alb ald alf all alo alt alz aoa aob aod aof aol aoo aot at- ata atb atd atf atl ato att atz az- aza azb azd azf azo azt azz baa bab bad baf bal bao bat baz bba bbb bbd bbf bbl bbo bbt bda bdb bdd bdf bdl bdo bdt bdz bfa bfb bfd bff bfl bfo bft bfz bla blb bld blf bll blo blt blz boa bob bod bof bol boo bot boz bta btb btd btf btl bto btt btz bza bzd bzf bzo bzz daa dab dad daf dal dao dat daz dba dbb dbd dbf dbl dbo dbt dbz dda ddb ddd ddf ddl ddo ddt ddz dfa dfb dfd dff dfl dfo dft dfz dl- dla dlb dld dlf dll dlo dlt doa dob dod dof dol doo dot doz dta dtb dtd dtf dtl dto dtt dtz dza dzb dzd dzo faa fab fad faf fal fao fat faz fba fbb fbd fbf fbl fbo fbt fda fdb fdd fdf fdl fdo fdt ffa ffd fff ffl ffo fft ffz fla flb fld flf fll flo flt foa fob fof fol foo fot foz fta ftb ftd ftf ftl fto ftt ftz fzd la- laa lab lad laf lal lao lat laz lba lbb lbd lbf lbl lbo lbt lda ldb ldd ldf ldl ldo ldt lfa lfb lfd lff lfl lfo lft lla llb lld llf lll llo llt llz loa lob lod lof lol loo lot loz lta ltb ltd ltf ltl lto ltt ltz lzo oaa oab oad oaf oal oao oat ob- oba obb obd obf obl obo obt oda odb odd odf odl odo odt of- ofa ofb ofd off ofl ofo oft ofz ola olb old olf oll olo olt oo- ooa oob ood oof ool ooo oot ot- ota otb otd otf otl oto ott otz oza ozo ozt ozz taa tab tad taf tal tao tat taz tba tbb tbd tbf tbl tbo tbt tbz tda tdb tdd tdf tdl tdo tdt tfa tfb tfd tff tfl tfo tft tla tld tlf tll tlo tlt tlz to- toa tob tod tof tol too tot toz tta ttb ttd ttf ttl tto ttt tza tzd tzf zaa zab zad zaf zao zat zaz zbb zbl zbt zdf zdt zfa zfd zla zlt zo- zoa zob zod zof zol zoo zot zta ztl zzt zzz