-al -er a-a a-c aaa aac aae aak aal aap aar ac- aca acc ace ack acl acp acr aea aec aee aek ael aep aer aka akc ake akk akl akp akr al- ala alc ale alk all alp alr ap- apa apc ape apk apl app apr ar- ara arc are ark arl arp arr c-- caa cac cae cak cal cap car cca ccc cce cck ccl ccp ccr ce- cea cec cee cek cel cep cer cka ckc cl- cla clc cle clk cll clp clr cpa cpc cpe cpk cpl cpp cpr cra crc cre crk crl crp crr eaa eac eae eak eal eap ear ec- eca ecc ece eck ecl ecr eea eec eee eek eel eep eer eka ekc eke ekl ekp ekr ela elc ele elk ell elp elr ep- epa epc epe epl epp epr era erc ere erk erl erp err ka- kaa kac kae kak kal kap kar kca kcc kce kck kcl kcp kcr ke- kea kec kee kek kel kep ker kkc kke kkk kkl kkp kkr kl- kla klc klr kpa kpc kpe kpk kpl kpp kpr kra krc krk krl krp krr l-p la- laa lac lae lak lal lap lar lca lcc lce lck lcl lcp lcr lea lec lee lek lel lep ler lka lkl lkp lkr lla llc lle llk lll llp llr lpa lpc lpe lpk lpl lpp lpr lra lrc lrk lrp lrr p-p paa pac pae pak pal pap par pca pcc pce pck pcl pcp pcr pea pec pee pek pel pep per pka pkc pke pkl pkp pkr pla plc ple plk pll plp plr ppa ppc ppe ppk ppl ppp ppr pra prc pre prk prl prp prr ra- raa rac rae rak ral rap rar rca rcc rce rcl rcp rcr re- rea rec ree rek rel rep rer rkc rke rkk rkp rla rlc rle rll rlp rlr rpa rpc rpe rpk rpl rpp rpr rra rrc rrk rrl rrp rrr