-al -ol a-a a-b a-i aaa aab aae aag aai aal aao aas ab- aba abb abe abg abi abl abo abs aea aeb aee aeg aei ael aeo aes ag- aga agb age agg agi agl ago ags ai- aia aib aie aig aii ail aio ais al- ala alb ale alg ali all alo als aoa aob aoe aog aoi aol aoo aos as- asa asb ase asg asi asl aso ass baa bab bae bag bai bal bao bas bba bbb bbe bbg bbi bbl bbo bbs be- bea beb bee beg bei bel beo bes bga bgb bge bgg bgi bgl bgo bgs bi- bia bib bie big bii bil bio bis bla blb ble blg bli bll blo bls boa bob boe bog boi bol boo bos bsa bsb bse bsg bsi bsl bso bss eaa eab eae eag eai eal eao eas eba ebb ebe ebg ebi ebl ebo ebs eea eeb eee eeg eel eeo ees ega egb ege egg egi egl ego egs eia eib eie eig eii eil eio eis ela elb ele elg eli ell elo els eo- eoa eob eoe eog eoi eol eoo eos es- esa esb ese esg esi esl eso ess gaa gab gae gag gai gal gao gas gba gbe gbg gbi gbl gbo gbs ge- gea geb gee geg gei gel geo ges gga ggb ggg ggi ggo ggs gia gib gie gig gii gil gio gis gla glb gle glg gli gll glo gls goa gob goe gog goi gol goo gos gsa gsb gse gsg gsi gsl gso gss ia- iaa iab iae iag iai ial iao ias iba ibb ibe ibg ibi ibl ibo ibs ie- iea iee ieg iei iel ies iga igb ige igg igi igl igo igs iia iib iie iii iil iio iis il- ila ilb ile ilg ili ill ilo ils io- ioa iob ioe iog ioi iol ioo ios is- isa isb ise isg isi isl iso iss la- laa lab lae lag lai lal lao las lba lbb lbe lbg lbi lbl lbo lbs lea leb lee leg lei lel leo les lga lgb lge lgg lgi lgl lgo lgs lia lib lie lig lii lil lio lis lla llb lle llg lli lll llo lls loa lob loe log loi lol loo los lsa lsb lse lsg lsi lsl lso lss o-i oaa oab oae oag oai oal oao oas ob- oba obb obe obg obi obl obo obs oea oeb oee oeg oei oel oeo oes oga oge ogg ogi ogl ogo ogs oia oib oie oii oil oio ois ola olb ole olg oli oll olo ols oo- ooa oob oog ooi ool ooo oos os- osa osb ose osg osi osl oso oss saa sab sae sag sai sal sao sas sba sbb sbe sbg sbi sbl sbo sbs se- sea seb see seg sei sel seo ses sga sgb sge sgg sgi sgl sgo sgs sia sib sie sig sii sil sio sis sla slb sle slg sli sll slo sls soa sob soe sog soi sol soo sos ss- ssa ssb sse ssg ssi ssl sso sss