-al -ol a-a a-b a-i aaa aab aag aai aal aao aas ab- aba abb abg abi abl abo abs ag- aga agb agg agi agl ago ags ai- aia aib aig aii ail aio ais al- ala alb alg ali all alo als aoa aob aog aoi aol aoo aos as- asa asb asg asi asl aso ass baa bab bag bai bal bao bas bba bbb bbg bbi bbl bbo bbs bga bgb bgg bgi bgl bgo bgs bi- bia bib big bii bil bio bis bla blb blg bli bll blo bls boa bob bog boi bol boo bos bsa bsb bsg bsi bsl bso bss gaa gab gag gai gal gao gas gba gbg gbi gbl gbo gbs gga ggb ggg ggi ggo ggs gia gib gig gii gil gio gis gla glb glg gli gll glo gls goa gob gog goi gol goo gos gsa gsb gsg gsi gsl gso gss ia- iaa iab iag iai ial iao ias iba ibb ibg ibi ibl ibo ibs iga igb igg igi igl igo igs iia iib iii iil iio iis il- ila ilb ilg ili ill ilo ils io- ioa iob iog ioi iol ioo ios is- isa isb isg isi isl iso iss la- laa lab lag lai lal lao las lba lbb lbg lbi lbl lbo lbs lga lgb lgg lgi lgl lgo lgs lia lib lig lii lil lio lis lla llb llg lli lll llo lls loa lob log loi lol loo los lsa lsb lsg lsi lsl lso lss o-i oaa oab oag oai oal oao oas ob- oba obb obg obi obl obo obs oga ogg ogi ogl ogo ogs oia oib oii oil oio ois ola olb olg oli oll olo ols oo- ooa oob oog ooi ool ooo oos os- osa osb osg osi osl oso oss saa sab sag sai sal sao sas sba sbb sbg sbi sbl sbo sbs sga sgb sgg sgi sgl sgo sgs sia sib sig sii sil sio sis sla slb slg sli sll slo sls soa sob sog soi sol soo sos ss- ssa ssb ssg ssi ssl sso sss