-al -ol a-a a-c a-t aaa aac aae aal aao aap aas aat ac- aca acc ace acl aco acp acs act aea aec aee ael aeo aep aes aet al- ala alc ale all alo alp als alt aoa aoc aoe aol aoo aop aos aot ap- apa apc ape apl apo app aps apt as- asa asc ase asl aso asp ass ast at- ata atc ate atl ato atp ats att c-- caa cac cae cal cao cap cas cat cca ccc cce ccl cco ccp ccs cct ce- cea cec cee cel ceo cep ces cet cl- cla clc cle cll clo clp cls clt co- coa coc coe col coo cop cos cot cpa cpc cpe cpl cpo cpp cps cpt csa csc cse csl cso csp css cst cta ctc cte ctl cto ctp cts ctt eaa eac eae eal eao eap eas eat ec- eca ecc ece ecl eco ecs ect eea eec eee eel eeo eep ees eet ela elc ele ell elo elp els elt eo- eoa eoc eoe eol eoo eop eos eot ep- epa epc epe epl epo epp eps ept es- esa esc ese esl eso esp ess est eta etc ete etl eto etp ets ett l-p la- laa lac lae lal lao lap las lat lca lcc lce lcl lco lcp lcs lct lea lec lee lel leo lep les let lla llc lle lll llo llp lls llt loa loc loe lol loo lop los lot lpa lpc lpe lpl lpo lpp lps lpt lsa lsc lse lsl lso lsp lss lst lta ltc lte ltl lto ltp lts ltt oaa oac oae oal oao oap oas oat oc- oca occ ocl oco ocp ocs oct oea oec oee oel oeo oep oes oet ola olc ole oll olo olp ols olt oo- ooa ooc ool ooo oop oos oot op- opa opc ope opl opo opp ops opt os- osa osc ose osl oso osp oss ost ot- ota otc ote otl oto otp ots ott p-p paa pac pae pal pao pap pas pat pca pcc pce pcl pco pcp pcs pct pea pec pee pel peo pep pes pet pla plc ple pll plo plp pls plt poa poc poe pol poo pop pos pot ppa ppc ppe ppl ppo ppp pps ppt ps- psa psc pse psl pso psp pss pst pt- pta ptc pte ptl pto ptp pts ptt saa sac sae sal sao sap sas sat sca scc sce scl sco scp scs sct se- sea sec see sel seo sep ses set sla slc sle sll slo slp sls slt soa soc soe sol soo sop sos sot spa spc spe spl spo spp sps spt ss- ssa ssc sse ssl sso ssp sss sst sta stc ste stl sto stp sts stt taa tac tae tal tao tap tas tat tca tcc tce tcl tco tcp tcs tct te- tea tec tee tel teo tep tes tet tla tlc tle tll tlo tlp tls tlt to- toa toc toe tol too top tos tot tpa tpc tpe tpl tpo tpp tps tpt tsa tsc tse tsl tso tsp tss tst tta ttc tte ttl tto ttp tts ttt