-al -ol a-a a-b a-i a-t aaa aab aag aai aal aao aas aat ab- aba abb abg abi abl abo abs abt ag- aga agb agg agi agl ago ags agt ai- aia aib aig aii ail aio ais ait al- ala alb alg ali all alo als alt aoa aob aog aoi aol aoo aos aot as- asa asb asg asi asl aso ass ast at- ata atb atg ati atl ato ats att baa bab bag bai bal bao bas bat bba bbb bbg bbi bbl bbo bbs bbt bga bgb bgg bgi bgl bgo bgs bgt bi- bia bib big bii bil bio bis bit bla blb blg bli bll blo bls blt boa bob bog boi bol boo bos bot bsa bsb bsg bsi bsl bso bss bst bta btb btg bti btl bto bts btt gaa gab gag gai gal gao gas gat gba gbg gbi gbl gbo gbs gbt gga ggb ggg ggi ggo ggs ggt gia gib gig gii gil gio gis git gla glb glg gli gll glo gls glt goa gob gog goi gol goo gos got gsa gsb gsg gsi gsl gso gss gst gta gtb gtg gti gtl gto gts gtt ia- iaa iab iag iai ial iao ias iat iba ibb ibg ibi ibl ibo ibs ibt iga igb igg igi igl igo igs igt iia iib iii iil iio iis iit il- ila ilb ilg ili ill ilo ils ilt io- ioa iob iog ioi iol ioo ios iot is- isa isb isg isi isl iso iss ist ita itb itg iti itl ito its itt la- laa lab lag lai lal lao las lat lba lbb lbg lbi lbl lbo lbs lbt lga lgb lgg lgi lgl lgo lgs lgt lia lib lig lii lil lio lis lit lla llb llg lli lll llo lls llt loa lob log loi lol loo los lot lsa lsb lsg lsi lsl lso lss lst lta ltb ltg lti ltl lto lts ltt o-i oaa oab oag oai oal oao oas oat ob- oba obb obg obi obl obo obs obt oga ogg ogi ogl ogo ogs ogt oia oib oii oil oio ois oit ola olb olg oli oll olo ols olt oo- ooa oob oog ooi ool ooo oos oot os- osa osb osg osi osl oso oss ost ot- ota otb otg oti otl oto ots ott saa sab sag sai sal sao sas sat sba sbb sbg sbi sbl sbo sbs sbt sga sgb sgg sgi sgl sgo sgs sgt sia sib sig sii sil sio sis sit sla slb slg sli sll slo sls slt soa sob sog soi sol soo sos sot ss- ssa ssb ssg ssi ssl sso sss sst sta stb stg sti stl sto sts stt taa tab tag tai tal tao tas tat tba tbb tbg tbi tbl tbo tbs tbt tga tgb tgg tgi tgl tgo tgs tgt tia tib tig tii til tio tis tit tla tlg tli tll tlo tls tlt to- toa tob tog toi tol too tos tot tsa tsb tsg tsi tsl tso tss tst tta ttb ttg tti ttl tto tts ttt