-al -er a-a a-c a-t aaa aac aae aak aal aap aar aat ac- aca acc ace ack acl acp acr act aea aec aee aek ael aep aer aet aka akc ake akk akl akp akr al- ala alc ale alk all alp alr alt ap- apa apc ape apk apl app apr apt ar- ara arc are ark arl arp arr art at- ata atc ate atl atp atr att c-- caa cac cae cak cal cap car cat cca ccc cce cck ccl ccp ccr cct ce- cea cec cee cek cel cep cer cet cka ckc ckt cl- cla clc cle clk cll clp clr clt cpa cpc cpe cpk cpl cpp cpr cpt cra crc cre crk crl crp crr crt cta ctc cte ctk ctl ctp ctr ctt eaa eac eae eak eal eap ear eat ec- eca ecc ece eck ecl ecr ect eea eec eee eek eel eep eer eet eka ekc eke ekl ekp ekr ekt ela elc ele elk ell elp elr elt ep- epa epc epe epl epp epr ept era erc ere erk erl erp err ert eta etc ete etk etl etp etr ett k-t ka- kaa kac kae kak kal kap kar kat kca kcc kce kck kcl kcp kcr kct ke- kea kec kee kek kel kep ker ket kkc kke kkk kkl kkp kkr kkt kl- kla klc klr klt kpa kpc kpe kpk kpl kpp kpr kpt kra krc krk krl krp krr krt kta ktc kte ktk ktl ktp ktr ktt l-p la- laa lac lae lak lal lap lar lat lca lcc lce lck lcl lcp lcr lct lea lec lee lek lel lep ler let lka lkl lkp lkr lkt lla llc lle llk lll llp llr llt lpa lpc lpe lpk lpl lpp lpr lpt lra lrc lrk lrp lrr lrt lta ltc lte ltk ltl ltp ltr ltt p-p paa pac pae pak pal pap par pat pca pcc pce pck pcl pcp pcr pct pea pec pee pek pel pep per pet pka pkc pke pkl pkp pkr pkt pla plc ple plk pll plp plr plt ppa ppc ppe ppk ppl ppp ppr ppt pra prc pre prk prl prp prr prt pt- pta ptc pte ptk ptl ptp ptr ptt ra- raa rac rae rak ral rap rar rat rca rcc rce rcl rcp rcr rct re- rea rec ree rek rel rep rer ret rkc rke rkk rkp rkt rla rlc rle rll rlp rlr rlt rpa rpc rpe rpk rpl rpp rpr rpt rra rrc rrk rrl rrp rrr rrt rta rtc rte rtk rtl rtp rtr rtt taa tac tae tak tal tap tar tat tca tcc tce tck tcl tcp tcr tct te- tea tec tee tek tel tep ter tet tka tkc tke tkk tkl tkp tkr tkt tla tlc tle tlk tll tlp tlr tlt tpa tpc tpe tpk tpl tpp tpr tpt tra trc tre trk trl trp trr trt tta ttc tte ttk ttl ttp ttr ttt