a-a a-b a-i a-t aaa aab aad aag aai aao aat ab- aba abb abd abg abi abo abt ad- ada adb add adg adi ado adt ag- aga agb agd agg agi ago agt ai- aia aib aid aig aii aio ait aoa aob aod aog aoi aoo aot at- ata atb atd atg ati ato att baa bab bad bag bai bao bat bba bbb bbd bbg bbi bbo bbt bda bdb bdd bdg bdi bdo bdt bga bgb bgd bgg bgi bgo bgt bi- bia bib bid big bii bio bit boa bob bod bog boi boo bot bta btb btd btg bti bto btt daa dab dad dag dai dao dat dba dbb dbd dbg dbi dbo dbt dda ddb ddd ddg ddi ddo ddt dga dgd dgg dgi dgt di- dia dib did dig dii dio dit doa dob dod dog doi doo dot dta dtb dtd dtg dti dto dtt g-d gaa gab gad gag gai gao gat gba gbd gbg gbi gbo gbt gda gdb gdd gdi gdo gdt gga ggb ggd ggg ggi ggo ggt gia gib gid gig gii gio git goa gob god gog goi goo got gta gtb gtd gtg gti gto gtt i-d ia- iaa iab iad iag iai iao iat iba ibb ibd ibg ibi ibo ibt ida idb idd idg idi ido idt iga igb igd igg igi igo igt iia iib iid iii iio iit io- ioa iob iod iog ioi ioo iot ita itb itd itg iti ito itt o-i oaa oab oad oag oai oao oat ob- oba obb obd obg obi obo obt oda odb odd odg odi odo odt oga ogd ogg ogi ogo ogt oia oib oid oii oio oit oo- ooa oob ood oog ooi ooo oot ot- ota otb otd otg oti oto ott taa tab tad tag tai tao tat tba tbb tbd tbg tbi tbo tbt tda tdb tdd tdg tdi tdo tdt tga tgb tgg tgi tgo tgt tia tib tid tig tii tio tit to- toa tob tod tog toi too tot tta ttb ttd ttg tti tto ttt