-al -ol a-a a-c a-t aaa aac aal aan aao aap aas aat ac- aca acc acl acn aco acp acs act al- ala alc all aln alo alp als alt an- ana anc anl ann ano anp ans ant aoa aoc aol aon aoo aop aos aot ap- apa apc apl apn apo app aps apt as- asa asc asl asn aso asp ass ast at- ata atc atl atn ato atp ats att c-- caa cac cal can cao cap cas cat cca ccc ccl ccn cco ccp ccs cct cl- cla clc cll cln clo clp cls clt cn- cna cnc cnl cnn cno cnp cns cnt co- coa coc col con coo cop cos cot cpa cpc cpl cpn cpo cpp cps cpt csa csc csl csn cso csp css cst cta ctc ctl ctn cto ctp cts ctt l-p la- laa lac lal lan lao lap las lat lca lcc lcl lcn lco lcp lcs lct lla llc lll lln llo llp lls llt lna lnc lnl lnn lno lnp lns lnt loa loc lol lon loo lop los lot lpa lpc lpl lpn lpo lpp lps lpt lsa lsc lsl lsn lso lsp lss lst lta ltc ltl lto ltp lts ltt naa nac nal nan nao nap nas nat nca ncc ncl ncn nco ncp ncs nct nla nlc nll nln nlo nlp nls nlt nna nnc nnl nnn nno nnp nns nnt no- noa noc nol non noo nop nos not npa npc npl npn npo npp nps npt nsa nsc nsl nsn nso nsp nss nst nta ntc ntn nto ntp nts ntt oaa oac oal oan oao oap oas oat oc- oca occ ocl ocn oco ocp ocs oct ola olc oll oln olo olp ols olt on- ona onc onl onn ono onp ons ont oo- ooa ooc ool oon ooo oop oos oot op- opa opc opl opn opo opp ops opt os- osa osc osl osn oso osp oss ost ot- ota otc otl otn oto otp ots ott p-p paa pac pal pan pao pap pas pat pca pcc pcl pcn pco pcp pcs pct pla plc pll pln plo plp pls plt pn- pna pnc pnl pnn pno pnp pns pnt poa poc pol pon poo pop pos pot ppa ppc ppl ppn ppo ppp pps ppt ps- psa psc psl psn pso psp pss pst pt- pta ptc ptl ptn pto ptp pts ptt saa sac sal san sao sap sas sat sca scc scl scn sco scp scs sct sla slc sll sln slo slp sls slt sna snc snl snn sno snp sns snt soa soc sol son soo sop sos sot spa spc spl spn spo spp sps spt ss- ssa ssc ssl ssn sso ssp sss sst sta stc stl stn sto stp sts stt taa tac tal tan tao tap tas tat tca tcc tcl tcn tco tcp tcs tct tla tlc tll tln tlo tlp tls tlt tna tnc tnl tnn tno tnp tns tnt to- toa toc tol ton too top tos tot tpa tpc tpl tpn tpo tpp tps tpt tsa tsc tsl tsn tso tsp tss tst tta ttc ttl ttn tto ttp tts ttt