-al -ol a-a a-b a-i a-t aaa aab aad aaf aai aal aao aat ab- aba abb abd abf abi abl abo abt ad- ada adb add adf adi adl ado adt af- afa afb afd aff afi afl afo aft ai- aia aib aid aif aii ail aio ait al- ala alb ald alf ali all alo alt aoa aob aod aof aoi aol aoo aot at- ata atb atd atf ati atl ato att baa bab bad baf bai bal bao bat bba bbb bbd bbf bbi bbl bbo bbt bda bdb bdd bdf bdi bdl bdo bdt bfa bfb bfd bff bfi bfl bfo bft bi- bia bib bid bif bii bil bio bit bla blb bld blf bli bll blo blt boa bob bod bof boi bol boo bot bta btb btd btf bti btl bto btt daa dab dad daf dai dal dao dat dba dbb dbd dbf dbi dbl dbo dbt dda ddb ddd ddf ddi ddl ddo ddt dfa dfb dfd dff dfi dfl dfo dft di- dia dib did dif dii dil dio dit dl- dla dlb dld dlf dli dll dlo dlt doa dob dod dof doi dol doo dot dta dtb dtd dtf dti dtl dto dtt faa fab fad faf fai fal fao fat fba fbb fbd fbf fbi fbl fbo fbt fda fdb fdd fdf fdi fdl fdo fdt ffa ffd fff ffi ffl ffo fft fia fib fid fif fii fil fit fla flb fld flf fli fll flo flt foa fob fof foi fol foo fot fta ftb ftd ftf fti ftl fto ftt i-d i-f ia- iaa iab iad iaf iai ial iao iat iba ibb ibd ibf ibi ibl ibo ibt ida idb idd idf idi idl ido idt ifa ifb ifd iff ifi ifl ifo ift iia iib iid iif iii iil iio iit il- ila ilb ild ilf ili ill ilo ilt io- ioa iob iod iof ioi iol ioo iot ita itb itd itf iti itl ito itt la- laa lab lad laf lai lal lao lat lba lbb lbd lbf lbi lbl lbo lbt lda ldb ldd ldf ldi ldl ldo ldt lfa lfb lfd lff lfi lfl lfo lft lia lib lid lif lii lil lio lit lla llb lld llf lli lll llo llt loa lob lod lof loi lol loo lot lta ltb ltd ltf lti ltl lto ltt o-i oaa oab oad oaf oai oal oao oat ob- oba obb obd obf obi obl obo obt oda odb odd odf odi odl odo odt of- ofa ofb ofd off ofi ofl ofo oft oia oib oid oif oii oil oio oit ola olb old olf oli oll olo olt oo- ooa oob ood oof ooi ool ooo oot ot- ota otb otd otf oti otl oto ott taa tab tad taf tai tal tao tat tba tbb tbd tbf tbi tbl tbo tbt tda tdb tdd tdf tdi tdl tdo tdt tfa tfb tfd tff tfi tfl tfo tft tia tib tid tif tii til tio tit tla tld tlf tli tll tlo tlt to- toa tob tod tof toi tol too tot tta ttb ttd ttf tti ttl tto ttt