-al -ol a-a a-c aaa aac aal aao aap aas aax ac- aca acc acl aco acp acs acx al- ala alc all alo alp als alx aoa aoc aol aoo aop aos aox ap- apa apc apl apo app aps apx as- asa asc asl aso asp ass asx ax- axa axl axo axp axs axx c-- caa cac cal cao cap cas cax cca ccc ccl cco ccp ccs ccx cl- cla clc cll clo clp cls clx co- coa coc col coo cop cos cox cpa cpc cpl cpo cpp cps cpx csa csc csl cso csp css csx cxc cxl cxo cxp cxs cxx l-p la- laa lac lal lao lap las lax lca lcc lcl lco lcp lcs lcx lla llc lll llo llp lls loa loc lol loo lop los lox lpa lpc lpl lpo lpp lps lpx lsa lsc lsl lso lsp lss lxc lxo lxx oaa oac oal oao oap oas oax oc- oca occ ocl oco ocp ocs ocx ola olc oll olo olp ols oo- ooa ooc ool ooo oop oos oox op- opa opc opl opo opp ops opx os- osa osc osl oso osp oss osx ox- oxa oxc oxo oxx p-p paa pac pal pao pap pas pax pca pcc pcl pco pcp pcs pcx pla plc pll plo plp pls plx poa poc pol poo pop pos pox ppa ppc ppl ppo ppp pps ppx ps- psa psc psl pso psp pss psx pxc pxl pxs saa sac sal sao sap sas sax sca scc scl sco scp scs scx sla slc sll slo slp sls slx soa soc sol soo sop sos sox spa spc spl spo spp sps spx ss- ssa ssc ssl sso ssp sss ssx sxc sxl sxs xaa xac xal xap xas xcl xcp xcx xla xls xoa xoc xoo xop xos xox xpa xpc xpl xpo xpp xps xsa xsc xsl xsp xss xxl xxo xxp xxx