-al -ol a-a a-b aaa aab aad aae aal aao aap aas ab- aba abb abd abe abl abo abp abs ad- ada adb add ade adl ado adp ads aea aeb aed aee ael aeo aep aes al- ala alb ald ale all alo alp als aoa aob aod aoe aol aoo aop aos ap- apa apb apd ape apl apo app aps as- asa asb asd ase asl aso asp ass b-p baa bab bad bae bal bao bap bas bba bbb bbd bbe bbl bbo bbp bbs bda bdb bdd bde bdl bdo bdp bds be- bea beb bed bee bel beo bep bes bla blb bld ble bll blo blp bls boa bob bod boe bol boo bop bos bpa bpb bpd bpe bpl bpo bpp bps bsa bsb bsd bse bsl bso bsp bss daa dab dad dae dal dao dap das dba dbb dbd dbe dbl dbo dbp dbs dda ddb ddd dde ddl ddo ddp dds de- dea deb ded dee del deo dep des dl- dla dlb dld dle dll dlo dlp dls doa dob dod doe dol doo dop dos dpa dpb dpd dpe dpl dpo dpp dps dsa dsb dsd dse dsl dso dsp dss eaa eab ead eae eal eao eap eas eba ebb ebd ebe ebl ebo ebp ebs ed- eda edb edd ede edl edo edp eds eea eeb eed eee eel eeo eep ees ela elb eld ele ell elo elp els eo- eoa eob eod eoe eol eoo eop eos ep- epa epb epd epe epl epo epp eps es- esa esb esd ese esl eso esp ess l-p la- laa lab lad lae lal lao lap las lba lbb lbd lbe lbl lbo lbp lbs lda ldb ldd lde ldl ldo ldp lds lea leb led lee lel leo lep les lla llb lld lle lll llo llp lls loa lob lod loe lol loo lop los lpa lpb lpd lpe lpl lpo lpp lps lsa lsb lsd lse lsl lso lsp lss oaa oab oad oae oal oao oap oas ob- oba obb obd obe obl obo obp obs oda odb odd ode odl odo odp ods oea oeb oed oee oel oeo oep oes ola olb old ole oll olo olp ols oo- ooa oob ood ool ooo oop oos op- opa opb opd ope opl opo opp ops os- osa osb osd ose osl oso osp oss p-p paa pab pad pae pal pao pap pas pba pbb pbd pbe pbl pbo pbp pbs pda pdb pdd pde pdl pdo pdp pds pea peb ped pee pel peo pep pes pla plb pld ple pll plo plp pls poa pob pod poe pol poo pop pos ppa ppb ppd ppe ppl ppo ppp pps ps- psa psb psd pse psl pso psp pss saa sab sad sae sal sao sap sas sba sbb sbd sbe sbl sbo sbp sbs sda sdb sdd sde sdl sdo sdp sds se- sea seb sed see sel seo sep ses sla slb sld sle sll slo slp sls soa sob sod soe sol soo sop sos spa spb spd spe spl spo spp sps ss- ssa ssb ssd sse ssl sso ssp sss