-al -ol a-a a-b a-t aaa aab aae aal aao aap aas aat ab- aba abb abe abl abo abp abs abt aea aeb aee ael aeo aep aes aet al- ala alb ale all alo alp als alt aoa aob aoe aol aoo aop aos aot ap- apa apb ape apl apo app aps apt as- asa asb ase asl aso asp ass ast at- ata atb ate atl ato atp ats att b-p baa bab bae bal bao bap bas bat bba bbb bbe bbl bbo bbp bbs bbt be- bea beb bee bel beo bep bes bet bla blb ble bll blo blp bls blt boa bob boe bol boo bop bos bot bpa bpb bpe bpl bpo bpp bps bpt bsa bsb bse bsl bso bsp bss bst bta btb bte btl bto btp bts btt eaa eab eae eal eao eap eas eat eba ebb ebe ebl ebo ebp ebs ebt eea eeb eee eel eeo eep ees eet ela elb ele ell elo elp els elt eo- eoa eob eoe eol eoo eop eos eot ep- epa epb epe epl epo epp eps ept es- esa esb ese esl eso esp ess est eta etb ete etl eto etp ets ett l-p la- laa lab lae lal lao lap las lat lba lbb lbe lbl lbo lbp lbs lbt lea leb lee lel leo lep les let lla llb lle lll llo llp lls llt loa lob loe lol loo lop los lot lpa lpb lpe lpl lpo lpp lps lpt lsa lsb lse lsl lso lsp lss lst lta ltb lte ltl lto ltp lts ltt oaa oab oae oal oao oap oas oat ob- oba obb obe obl obo obp obs obt oea oeb oee oel oeo oep oes oet ola olb ole oll olo olp ols olt oo- ooa oob ool ooo oop oos oot op- opa opb ope opl opo opp ops opt os- osa osb ose osl oso osp oss ost ot- ota otb ote otl oto otp ots ott p-p paa pab pae pal pao pap pas pat pba pbb pbe pbl pbo pbp pbs pbt pea peb pee pel peo pep pes pet pla plb ple pll plo plp pls plt poa pob poe pol poo pop pos pot ppa ppb ppe ppl ppo ppp pps ppt ps- psa psb pse psl pso psp pss pst pt- pta ptb pte ptl pto ptp pts ptt saa sab sae sal sao sap sas sat sba sbb sbe sbl sbo sbp sbs sbt se- sea seb see sel seo sep ses set sla slb sle sll slo slp sls slt soa sob soe sol soo sop sos sot spa spb spe spl spo spp sps spt ss- ssa ssb sse ssl sso ssp sss sst sta stb ste stl sto stp sts stt taa tab tae tal tao tap tas tat tba tbb tbe tbl tbo tbp tbs tbt te- tea teb tee tel teo tep tes tet tla tle tll tlo tlp tls tlt to- toa tob toe tol too top tos tot tpa tpb tpe tpl tpo tpp tps tpt tsa tsb tse tsl tso tsp tss tst tta ttb tte ttl tto ttp tts ttt