-al a-a a-b a-i aaa aab aae aag aai aal aan aap aas ab- aba abb abe abg abi abl abn abp abs aea aeb aee aeg aei ael aen aep aes ag- aga agb age agg agi agl agn agp ags ai- aia aib aie aig aii ail ain aip ais al- ala alb ale alg ali all aln alp als an- ana anb ane ang ani anl ann anp ans ap- apa apb ape apg api apl apn app aps as- asa asb ase asg asi asl asn asp ass b-p baa bab bae bag bai bal ban bap bas bba bbb bbe bbg bbi bbl bbn bbp bbs be- bea beb bee beg bei bel ben bep bes bga bgb bge bgg bgi bgl bgn bgp bgs bi- bia bib bie big bii bil bin bip bis bla blb ble blg bli bll bln blp bls bna bnb bne bng bni bnl bnn bnp bns bpa bpb bpe bpg bpi bpl bpn bpp bps bsa bsb bse bsg bsi bsl bsn bsp bss eaa eab eae eag eai eal ean eap eas eba ebb ebe ebg ebi ebl ebn ebp ebs eea eeb eee eeg eel een eep ees ega egb ege egg egi egl egn egp egs eia eib eie eig eii eil ein eip eis ela elb ele elg eli ell eln elp els en- ena enb ene eng eni enl enn enp ens ep- epa epb epe epg epi epl epn epp eps es- esa esb ese esg esi esl esn esp ess g-p gaa gab gae gag gai gal gan gap gas gba gbe gbg gbi gbl gbn gbp gbs ge- gea geb gee geg gei gel gen gep ges gga ggb ggg ggi ggn ggp ggs gia gib gie gig gii gil gin gip gis gla glb gle glg gli gll gln glp gls gna gnb gne gni gnl gnn gnp gns gpa gpb gpe gpg gpi gpl gpn gpp gps gsa gsb gse gsg gsi gsl gsn gsp gss ia- iaa iab iae iag iai ial ian iap ias iba ibb ibe ibg ibi ibl ibn ibp ibs ie- iea iee ieg iei iel ien iep ies iga igb ige igg igi igl ign igp igs iia iib iie iii iil iin iip iis il- ila ilb ile ilg ili ill iln ilp ils in- ina inb ine ing ini inl inn inp ins ipa ipb ipe ipg ipi ipl ipn ipp ips is- isa isb ise isg isi isl isn isp iss l-p la- laa lab lae lag lai lal lan lap las lba lbb lbe lbg lbi lbl lbp lbs lea leb lee leg lei lel len lep les lga lgb lge lgg lgi lgl lgn lgp lgs lia lib lie lig lii lil lin lip lis lla llb lle llg lli lll lln llp lls lna lnb lne lng lni lnl lnn lnp lns lpa lpb lpe lpg lpi lpl lpn lpp lps lsa lsb lse lsg lsi lsl lsn lsp lss n-i naa nab nae nag nai nal nan nap nas nba nbb nbe nbg nbi nbl nbn nbp nbs ne- nea neb nee neg nei nel nen nep nes nga ngb nge ngg ngi ngl ngn ngp ngs nia nib nie nig nii nil nin nip nis nla nlb nle nlg nli nll nln nlp nls nna nnb nne nng nni nnl nnn nnp nns npa npb npe npg npi npl npn npp nps nsa nsb nse nsg nsi nsl nsn nsp nss p-p paa pab pae pag pai pal pan pap pas pba pbb pbe pbg pbi pbl pbn pbp pbs pea peb pee peg pei pel pen pep pes pga pgb pge pgg pgi pgl pgn pgp pgs pia pib pie pig pii pil pin pip pis pla plb ple plg pli pll pln plp pls pn- pna pnb pne png pni pnl pnn pnp pns ppa ppb ppe ppg ppi ppl ppn ppp pps ps- psa psb pse psg psi psl psn psp pss saa sab sae sag sai sal san sap sas sba sbb sbe sbg sbi sbl sbn sbp sbs se- sea seb see seg sei sel sen sep ses sga sgb sge sgg sgi sgl sgn sgp sgs sia sib sie sig sii sil sin sip sis sla slb sle slg sli sll sln slp sls sna snb sne sng sni snl snn snp sns spa spb spe spg spi spl spn spp sps ss- ssa ssb sse ssg ssi ssl ssn ssp sss