-al -ol a-a a-b a-i aaa aab aag aai aal aan aao aar aas ab- aba abb abg abi abl abn abo abr abs ag- aga agb agg agi agl agn ago agr ags ai- aia aib aig aii ail ain aio air ais al- ala alb alg ali all aln alo alr als an- ana anb ang ani anl ann ano anr ans aoa aob aog aoi aol aon aoo aor aos ar- ara arb arg ari arl arn aro arr ars as- asa asb asg asi asl asn aso asr ass baa bab bag bai bal ban bao bar bas bba bbb bbg bbi bbl bbn bbo bbr bbs bga bgb bgg bgi bgl bgn bgo bgr bgs bi- bia bib big bii bil bin bio bir bis bla blb blg bli bll bln blo blr bls bna bnb bng bni bnl bnn bno bnr bns boa bob bog boi bol bon boo bor bos bra brb brg bri brl brn bro brr brs bsa bsb bsg bsi bsl bsn bso bsr bss gaa gab gag gai gal gan gao gar gas gba gbg gbi gbl gbn gbo gbr gbs gga ggb ggg ggi ggn ggo ggr ggs gia gib gig gii gil gin gio gir gis gla glb glg gli gll gln glo glr gls gna gnb gni gnl gnn gno gnr gns goa gob gog goi gol gon goo gor gos gra grb grg gri grl grn gro grr grs gsa gsb gsg gsi gsl gsn gso gsr gss ia- iaa iab iag iai ial ian iao iar ias iba ibb ibg ibi ibl ibn ibo ibr ibs iga igb igg igi igl ign igo igr igs iia iib iii iil iin iio iir iis il- ila ilb ilg ili ill iln ilo ilr ils in- ina inb ing ini inl inn ino inr ins io- ioa iob iog ioi iol ion ioo ior ios ir- ira irb irg iri irl irn iro irr irs is- isa isb isg isi isl isn iso isr iss la- laa lab lag lai lal lan lao lar las lba lbb lbg lbi lbl lbo lbr lbs lga lgb lgg lgi lgl lgn lgo lgr lgs lia lib lig lii lil lin lio lir lis lla llb llg lli lll lln llo llr lls lna lnb lng lni lnl lnn lno lnr lns loa lob log loi lol lon loo lor los lra lrb lrg lri lrn lro lrr lrs lsa lsb lsg lsi lsl lsn lso lsr lss n-i naa nab nag nai nal nan nao nar nas nba nbb nbg nbi nbl nbn nbo nbr nbs nga ngb ngg ngi ngl ngn ngo ngs nia nib nig nii nil nin nio nir nis nla nlb nlg nli nll nln nlo nlr nls nna nnb nng nni nnl nnn nno nns no- noa nob nog noi nol non noo nor nos nra nrb nrg nri nrl nrn nro nrr nrs nsa nsb nsg nsi nsl nsn nso nsr nss o-i oaa oab oag oai oal oan oao oar oas ob- oba obb obg obi obl obn obo obr obs oga ogg ogi ogl ogn ogo ogs oia oib oii oil oin oio oir ois ola olb olg oli oll oln olo ols on- ona onb ong oni onl onn ono onr ons oo- ooa oob oog ooi ool oon ooo oor oos or- ora orb org ori orl orn oro orr ors os- osa osb osg osi osl osn oso osr oss ra- raa rab rag rai ral ran rao rar ras rba rbb rbg rbi rbl rbn rbo rbr rbs rga rgb rgg rgi rgn rgo rgr rgs ria rib rig rii ril rin rio rir ris rla rlg rli rll rln rlo rlr rls rna rnb rng rni rnn rno rnr rns roa rob rog roi rol ron roo ror ros rra rrb rrg rri rrl rrn rrr rrs rsa rsb rsg rsi rsl rsn rso rsr rss saa sab sag sai sal san sao sar sas sba sbb sbg sbi sbl sbn sbo sbr sbs sga sgb sgg sgi sgl sgn sgo sgr sgs sia sib sig sii sil sin sio sir sis sla slb slg sli sll sln slo slr sls sna snb sng sni snl snn sno snr sns soa sob sog soi sol son soo sor sos sr- sra srb srg sri srl srn sro srr srs ss- ssa ssb ssg ssi ssl ssn sso ssr sss