-al -ol a-a a-b a-t aaa aab aag aal aan aao aas aat ab- aba abb abg abl abn abo abs abt ag- aga agb agg agl agn ago ags agt al- ala alb alg all aln alo als alt an- ana anb ang anl ann ano ans ant aoa aob aog aol aon aoo aos aot as- asa asb asg asl asn aso ass ast at- ata atb atg atl atn ato ats att baa bab bag bal ban bao bas bat bba bbb bbg bbl bbn bbo bbs bbt bga bgb bgg bgl bgn bgo bgs bgt bla blb blg bll bln blo bls blt bna bnb bng bnl bnn bno bns bnt boa bob bog bol bon boo bos bot bsa bsb bsg bsl bsn bso bss bst bta btb btg btl btn bto bts btt gaa gab gag gal gan gao gas gat gba gbg gbl gbn gbo gbs gbt gga ggb ggg ggn ggo ggs ggt gla glb glg gll gln glo gls glt gna gnb gnl gnn gno gns gnt goa gob gog gol gon goo gos got gsa gsb gsg gsl gsn gso gss gst gta gtb gtg gtl gtn gto gts gtt la- laa lab lag lal lan lao las lat lba lbb lbg lbl lbo lbs lbt lga lgb lgg lgl lgn lgo lgs lgt lla llb llg lll lln llo lls llt lna lnb lng lnl lnn lno lns lnt loa lob log lol lon loo los lot lsa lsb lsg lsl lsn lso lss lst lta ltb ltg ltl lto lts ltt naa nab nag nal nan nao nas nat nba nbb nbg nbl nbn nbo nbs nbt nga ngb ngg ngl ngn ngo ngs ngt nla nlb nlg nll nln nlo nls nlt nna nnb nng nnl nnn nno nns nnt no- noa nob nog nol non noo nos not nsa nsb nsg nsl nsn nso nss nst nta ntb ntg ntn nto nts ntt oaa oab oag oal oan oao oas oat ob- oba obb obg obl obn obo obs obt oga ogg ogl ogn ogo ogs ogt ola olb olg oll oln olo ols olt on- ona onb ong onl onn ono ons ont oo- ooa oob oog ool oon ooo oos oot os- osa osb osg osl osn oso oss ost ot- ota otb otg otl otn oto ots ott saa sab sag sal san sao sas sat sba sbb sbg sbl sbn sbo sbs sbt sga sgb sgg sgl sgn sgo sgs sgt sla slb slg sll sln slo sls slt sna snb sng snl snn sno sns snt soa sob sog sol son soo sos sot ss- ssa ssb ssg ssl ssn sso sss sst sta stb stg stl stn sto sts stt taa tab tag tal tan tao tas tat tba tbb tbg tbl tbn tbo tbs tbt tga tgb tgg tgl tgn tgo tgs tgt tla tlg tll tln tlo tls tlt tna tnb tng tnl tnn tno tns tnt to- toa tob tog tol ton too tos tot tsa tsb tsg tsl tsn tso tss tst tta ttb ttg ttl ttn tto tts ttt