-al -ol a-a a-b a-t aaa aab aae aaf aal aao aap aas aat ab- aba abb abe abf abl abo abp abs abt aea aeb aee aef ael aeo aep aes aet af- afa afb afe aff afl afo afp afs aft al- ala alb ale alf all alo alp als alt aoa aob aoe aof aol aoo aop aos aot ap- apa apb ape apf apl apo app aps apt as- asa asb ase asf asl aso asp ass ast at- ata atb ate atf atl ato atp ats att b-p baa bab bae baf bal bao bap bas bat bba bbb bbe bbf bbl bbo bbp bbs bbt be- bea beb bee bef bel beo bep bes bet bfa bfb bfe bff bfl bfo bfp bfs bft bla blb ble blf bll blo blp bls blt boa bob boe bof bol boo bop bos bot bpa bpb bpe bpf bpl bpo bpp bps bpt bsa bsb bse bsf bsl bso bsp bss bst bta btb bte btf btl bto btp bts btt eaa eab eae eaf eal eao eap eas eat eba ebb ebe ebf ebl ebo ebp ebs ebt eea eeb eee eef eel eeo eep ees eet ef- efa efb efe eff efl efo efp efs eft ela elb ele elf ell elo elp els elt eo- eoa eob eoe eof eol eoo eop eos eot ep- epa epb epe epf epl epo epp eps ept es- esa esb ese esf esl eso esp ess est eta etb ete etf etl eto etp ets ett faa fab fae faf fal fao fap fas fat fba fbb fbe fbf fbl fbo fbp fbs fbt fea feb fee fef fel feo fep fes fet ffa ffe fff ffl ffo ffp ffs fft fla flb fle flf fll flo flp fls flt foa fob foe fof fol foo fop fos fot fpa fpb fpe fpl fpo fpp fps fpt fsa fsb fse fsf fsl fso fsp fss fst fta ftb fte ftf ftl fto ftp fts ftt l-p la- laa lab lae laf lal lao lap las lat lba lbb lbe lbf lbl lbo lbp lbs lbt lea leb lee lef lel leo lep les let lfa lfb lfe lff lfl lfo lfp lfs lft lla llb lle llf lll llo llp lls llt loa lob loe lof lol loo lop los lot lpa lpb lpe lpf lpl lpo lpp lps lpt lsa lsb lse lsf lsl lso lsp lss lst lta ltb lte ltf ltl lto ltp lts ltt oaa oab oae oaf oal oao oap oas oat ob- oba obb obe obf obl obo obp obs obt oea oeb oee oef oel oeo oep oes oet of- ofa ofb ofe off ofl ofo ofp ofs oft ola olb ole olf oll olo olp ols olt oo- ooa oob oof ool ooo oop oos oot op- opa opb ope opf opl opo opp ops opt os- osa osb ose osf osl oso osp oss ost ot- ota otb ote otf otl oto otp ots ott p-p paa pab pae paf pal pao pap pas pat pba pbb pbe pbf pbl pbo pbp pbs pbt pea peb pee pef pel peo pep pes pet pfa pfb pfe pff pfl pfo pfp pfs pft pla plb ple plf pll plo plp pls plt poa pob poe pof pol poo pop pos pot ppa ppb ppe ppf ppl ppo ppp pps ppt ps- psa psb pse psf psl pso psp pss pst pt- pta ptb pte ptf ptl pto ptp pts ptt saa sab sae saf sal sao sap sas sat sba sbb sbe sbf sbl sbo sbp sbs sbt se- sea seb see sef sel seo sep ses set sfa sfb sfe sff sfl sfo sfp sfs sft sla slb sle slf sll slo slp sls slt soa sob soe sof sol soo sop sos sot spa spb spe spf spl spo spp sps spt ss- ssa ssb sse ssf ssl sso ssp sss sst sta stb ste stf stl sto stp sts stt taa tab tae taf tal tao tap tas tat tba tbb tbe tbf tbl tbo tbp tbs tbt te- tea teb tee tef tel teo tep tes tet tfa tfb tfe tff tfl tfo tfp tfs tft tla tle tlf tll tlo tlp tls tlt to- toa tob toe tof tol too top tos tot tpa tpb tpe tpf tpl tpo tpp tps tpt tsa tsb tse tsf tsl tso tsp tss tst tta ttb tte ttf ttl tto ttp tts ttt