-al -ol a-a a-b aaa aab aag aal aan aao aas ab- aba abb abg abl abn abo abs ag- aga agb agg agl agn ago ags al- ala alb alg all aln alo als an- ana anb ang anl ann ano ans aoa aob aog aol aon aoo aos as- asa asb asg asl asn aso ass baa bab bag bal ban bao bas bba bbb bbg bbl bbn bbo bbs bga bgb bgg bgl bgn bgo bgs bla blb blg bll bln blo bls bna bnb bng bnl bnn bno bns boa bob bog bol bon boo bos bsa bsb bsg bsl bsn bso bss gaa gab gag gal gan gao gas gba gbg gbl gbn gbo gbs gga ggb ggg ggn ggo ggs gla glb glg gll gln glo gls gna gnb gnl gnn gno gns goa gob gog gol gon goo gos gsa gsb gsg gsl gsn gso gss la- laa lab lag lal lan lao las lba lbb lbg lbl lbo lbs lga lgb lgg lgl lgn lgo lgs lla llb llg lll lln llo lls lna lnb lng lnl lnn lno lns loa lob log lol lon loo los lsa lsb lsg lsl lsn lso lss naa nab nag nal nan nao nas nba nbb nbg nbl nbn nbo nbs nga ngb ngg ngl ngn ngo ngs nla nlb nlg nll nln nlo nls nna nnb nng nnl nnn nno nns no- noa nob nog nol non noo nos nsa nsb nsg nsl nsn nso nss oaa oab oag oal oan oao oas ob- oba obb obg obl obn obo obs oga ogg ogl ogn ogo ogs ola olb olg oll oln olo ols on- ona onb ong onl onn ono ons oo- ooa oob oog ool oon ooo oos os- osa osb osg osl osn oso oss saa sab sag sal san sao sas sba sbb sbg sbl sbn sbo sbs sga sgb sgg sgl sgn sgo sgs sla slb slg sll sln slo sls sna snb sng snl snn sno sns soa sob sog sol son soo sos ss- ssa ssb ssg ssl ssn sso sss