-al -er a-a a-b a-c aaa aab aac aae aal aap aar ab- aba abb abc abe abl abp abr ac- aca acb acc ace acl acp acr aea aeb aec aee ael aep aer al- ala alb alc ale all alp alr ap- apa apb apc ape apl app apr ar- ara arb arc are arl arp arr b-p baa bab bac bae bal bap bar bba bbb bbc bbe bbl bbp bbr bca bcb bcc bce bcl bcp bcr be- bea beb bec bee bel bep ber bla blb blc ble bll blp blr bpa bpb bpc bpe bpl bpp bpr bra brb bre brl brp brr c-- caa cab cac cae cal cap car cba cbb cbc cbe cbl cbp cbr cca ccb ccc cce ccl ccp ccr ce- cea ceb cec cee cel cep cer cl- cla clb clc cle cll clp clr cpa cpb cpc cpe cpl cpp cpr cra crb crc cre crl crp crr eaa eab eac eae eal eap ear eba ebb ebc ebe ebl ebp ebr ec- eca ecb ecc ece ecl ecr eea eeb eec eee eel eep eer ela elb elc ele ell elp elr ep- epa epb epc epe epl epp epr era erb erc ere erl erp err l-p la- laa lab lac lae lal lap lar lba lbb lbc lbe lbl lbp lbr lca lcb lcc lce lcl lcp lcr lea leb lec lee lel lep ler lla llb llc lle lll llp llr lpa lpb lpc lpe lpl lpp lpr lra lrb lrc lrp lrr p-p paa pab pac pae pal pap par pba pbb pbc pbe pbl pbp pbr pca pcb pcc pce pcl pcp pcr pea peb pec pee pel pep per pla plb plc ple pll plp plr ppa ppb ppc ppe ppl ppp ppr pra prb prc pre prl prp prr ra- raa rab rac rae ral rap rar rba rbb rbc rbe rbl rbp rbr rca rcb rcc rce rcl rcp rcr re- rea reb rec ree rel rep rer rla rlc rle rll rlp rlr rpa rpb rpc rpe rpl rpp rpr rra rrb rrc rrl rrp rrr