-al -ol a-a a-c aaa aac aae aal aao aap aas aax ac- aca acc ace acl aco acp acs acx aea aec aee ael aeo aep aes aex al- ala alc ale all alo alp als alx aoa aoc aoe aol aoo aop aos aox ap- apa apc ape apl apo app aps apx as- asa asc ase asl aso asp ass asx ax- axa axe axl axo axp axs axx c-- caa cac cae cal cao cap cas cax cca ccc cce ccl cco ccp ccs ccx ce- cea cec cee cel ceo cep ces cex cl- cla clc cle cll clo clp cls clx co- coa coc coe col coo cop cos cox cpa cpc cpe cpl cpo cpp cps cpx csa csc cse csl cso csp css csx cxc cxl cxo cxp cxs cxx eaa eac eae eal eao eap eas eax ec- eca ecc ece ecl eco ecs ecx eea eec eee eel eeo eep ees eex ela elc ele ell elo elp els elx eo- eoa eoc eoe eol eoo eop eos ep- epa epc epe epl epo epp eps epx es- esa esc ese esl eso esp ess esx ex- exa exc exe exl exo exp exs exx l-p la- laa lac lae lal lao lap las lax lca lcc lce lcl lco lcp lcs lcx lea lec lee lel leo lep les lex lla llc lle lll llo llp lls loa loc loe lol loo lop los lox lpa lpc lpe lpl lpo lpp lps lpx lsa lsc lse lsl lso lsp lss lxc lxo lxx oaa oac oae oal oao oap oas oax oc- oca occ ocl oco ocp ocs ocx oea oec oee oel oeo oep oes oex ola olc ole oll olo olp ols oo- ooa ooc ool ooo oop oos oox op- opa opc ope opl opo opp ops opx os- osa osc ose osl oso osp oss osx ox- oxa oxc oxo oxx p-p paa pac pae pal pao pap pas pax pca pcc pce pcl pco pcp pcs pcx pea pec pee pel peo pep pes pex pla plc ple pll plo plp pls plx poa poc poe pol poo pop pos pox ppa ppc ppe ppl ppo ppp pps ppx ps- psa psc pse psl pso psp pss psx pxc pxe pxl pxs saa sac sae sal sao sap sas sax sca scc sce scl sco scp scs scx se- sea sec see sel seo sep ses sex sla slc sle sll slo slp sls slx soa soc soe sol soo sop sos sox spa spc spe spl spo spp sps spx ss- ssa ssc sse ssl sso ssp sss ssx sxc sxl sxs xaa xac xal xap xas xcl xcp xcx xee xel xep xes xex xla xls xoa xoc xoo xop xos xox xpa xpc xpe xpl xpo xpp xps xsa xsc xsl xsp xss xxl xxo xxp xxx