-al -ol a-a a-b a-i aaa aab aae aag aai aal aao aap aas ab- aba abb abe abg abi abl abo abp abs aea aeb aee aeg aei ael aeo aep aes ag- aga agb age agg agi agl ago agp ags ai- aia aib aie aig aii ail aio aip ais al- ala alb ale alg ali all alo alp als aoa aob aoe aog aoi aol aoo aop aos ap- apa apb ape apg api apl apo app aps as- asa asb ase asg asi asl aso asp ass b-p baa bab bae bag bai bal bao bap bas bba bbb bbe bbg bbi bbl bbo bbp bbs be- bea beb bee beg bei bel beo bep bes bga bgb bge bgg bgi bgl bgo bgp bgs bi- bia bib bie big bii bil bio bip bis bla blb ble blg bli bll blo blp bls boa bob boe bog boi bol boo bop bos bpa bpb bpe bpg bpi bpl bpo bpp bps bsa bsb bse bsg bsi bsl bso bsp bss eaa eab eae eag eai eal eao eap eas eba ebb ebe ebg ebi ebl ebo ebp ebs eea eeb eee eeg eel eeo eep ees ega egb ege egg egi egl ego egp egs eia eib eie eig eii eil eio eip eis ela elb ele elg eli ell elo elp els eo- eoa eob eoe eog eoi eol eoo eop eos ep- epa epb epe epg epi epl epo epp eps es- esa esb ese esg esi esl eso esp ess g-p gaa gab gae gag gai gal gao gap gas gba gbe gbg gbi gbl gbo gbp gbs ge- gea geb gee geg gei gel geo gep ges gga ggb ggg ggi ggo ggp ggs gia gib gie gig gii gil gio gip gis gla glb gle glg gli gll glo glp gls goa gob goe gog goi gol goo gop gos gpa gpb gpe gpg gpi gpl gpo gpp gps gsa gsb gse gsg gsi gsl gso gsp gss ia- iaa iab iae iag iai ial iao iap ias iba ibb ibe ibg ibi ibl ibo ibp ibs ie- iea iee ieg iei iel iep ies iga igb ige igg igi igl igo igp igs iia iib iie iii iil iio iip iis il- ila ilb ile ilg ili ill ilo ilp ils io- ioa iob ioe iog ioi iol ioo iop ios ipa ipb ipe ipg ipi ipl ipo ipp ips is- isa isb ise isg isi isl iso isp iss l-p la- laa lab lae lag lai lal lao lap las lba lbb lbe lbg lbi lbl lbo lbp lbs lea leb lee leg lei lel leo lep les lga lgb lge lgg lgi lgl lgo lgp lgs lia lib lie lig lii lil lio lip lis lla llb lle llg lli lll llo llp lls loa lob loe log loi lol loo lop los lpa lpb lpe lpg lpi lpl lpo lpp lps lsa lsb lse lsg lsi lsl lso lsp lss o-i oaa oab oae oag oai oal oao oap oas ob- oba obb obe obg obi obl obo obp obs oea oeb oee oeg oei oel oeo oep oes oga oge ogg ogi ogl ogo ogp ogs oia oib oie oii oil oio oip ois ola olb ole olg oli oll olo olp ols oo- ooa oob oog ooi ool ooo oop oos op- opa opb ope opg opi opl opo opp ops os- osa osb ose osg osi osl oso osp oss p-p paa pab pae pag pai pal pao pap pas pba pbb pbe pbg pbi pbl pbo pbp pbs pea peb pee peg pei pel peo pep pes pga pgb pge pgg pgi pgl pgo pgp pgs pia pib pie pig pii pil pio pip pis pla plb ple plg pli pll plo plp pls poa pob poe pog poi pol poo pop pos ppa ppb ppe ppg ppi ppl ppo ppp pps ps- psa psb pse psg psi psl pso psp pss saa sab sae sag sai sal sao sap sas sba sbb sbe sbg sbi sbl sbo sbp sbs se- sea seb see seg sei sel seo sep ses sga sgb sge sgg sgi sgl sgo sgp sgs sia sib sie sig sii sil sio sip sis sla slb sle slg sli sll slo slp sls soa sob soe sog soi sol soo sop sos spa spb spe spg spi spl spo spp sps ss- ssa ssb sse ssg ssi ssl sso ssp sss