-al -er -ic a-a a-b a-c a-i aaa aab aac aae aai aal aap aar aas ab- aba abb abc abe abi abl abp abr abs ac- aca acb acc ace aci acl acp acr acs aea aeb aec aee aei ael aep aer aes ai- aia aib aic aie aii ail aip air ais al- ala alb alc ale ali all alp alr als ap- apa apb apc ape api apl app apr aps ar- ara arb arc are ari arl arp arr ars as- asa asb asc ase asi asl asp asr ass b-p baa bab bac bae bai bal bap bar bas bba bbb bbc bbe bbi bbl bbp bbr bbs bca bcb bcc bce bci bcl bcp bcr bcs be- bea beb bec bee bei bel bep ber bes bi- bia bib bic bie bii bil bip bir bis bla blb blc ble bli bll blp blr bls bpa bpb bpc bpe bpi bpl bpp bpr bps bra brb bre bri brl brp brr brs bsa bsb bsc bse bsi bsl bsp bsr bss c-- caa cab cac cae cai cal cap car cas cba cbb cbc cbe cbi cbl cbp cbr cbs cca ccb ccc cce cci ccl ccp ccr ccs ce- cea ceb cec cee cei cel cep cer ces ci- cia cib cic cie cii cil cip cir cis cl- cla clb clc cle cli cll clp clr cls cpa cpb cpc cpe cpi cpl cpp cpr cps cra crb crc cre cri crl crp crr crs csa csb csc cse csi csl csp csr css eaa eab eac eae eai eal eap ear eas eba ebb ebc ebe ebi ebl ebp ebr ebs ec- eca ecb ecc ece eci ecl ecr ecs eea eeb eec eee eel eep eer ees eia eib eic eie eii eil eip eir eis ela elb elc ele eli ell elp elr els ep- epa epb epc epe epi epl epp epr eps era erb erc ere eri erl erp err ers es- esa esb esc ese esi esl esp esr ess ia- iaa iab iac iae iai ial iap iar ias iba ibb ibc ibe ibi ibl ibp ibr ibs ica icb icc ice ici icl icp icr ics ie- iea iec iee iei iel iep ier ies iia iib iic iie iii iil iip iir iis il- ila ilb ilc ile ili ill ilp ilr ils ipa ipb ipc ipe ipi ipl ipp ipr ips ir- ira irb irc ire iri irl irp irr irs is- isa isb isc ise isi isl isp isr iss l-p la- laa lab lac lae lai lal lap lar las lba lbb lbc lbe lbi lbl lbp lbr lbs lca lcb lcc lce lci lcl lcp lcr lcs lea leb lec lee lei lel lep ler les lia lib lic lie lii lil lip lir lis lla llb llc lle lli lll llp llr lls lpa lpb lpc lpe lpi lpl lpp lpr lps lra lrb lrc lri lrp lrr lrs lsa lsb lsc lse lsi lsl lsp lsr lss p-p paa pab pac pae pai pal pap par pas pba pbb pbc pbe pbi pbl pbp pbr pbs pca pcb pcc pce pci pcl pcp pcr pcs pea peb pec pee pei pel pep per pes pia pib pic pie pii pil pip pir pis pla plb plc ple pli pll plp plr pls ppa ppb ppc ppe ppi ppl ppp ppr pps pra prb prc pre pri prl prp prr prs ps- psa psb psc pse psi psl psp psr pss ra- raa rab rac rae rai ral rap rar ras rba rbb rbc rbe rbi rbl rbp rbr rbs rca rcb rcc rce rci rcl rcp rcr rcs re- rea reb rec ree rei rel rep rer res ria rib ric rie rii ril rip rir ris rla rlc rle rli rll rlp rlr rls rpa rpb rpc rpe rpi rpl rpp rpr rps rra rrb rrc rri rrl rrp rrr rrs rsa rsb rsc rse rsi rsl rsp rsr rss saa sab sac sae sai sal sap sar sas sba sbb sbc sbe sbi sbl sbp sbr sbs sca scb scc sce sci scl scp scr scs se- sea seb sec see sei sel sep ser ses sia sib sic sie sii sil sip sir sis sla slb slc sle sli sll slp slr sls spa spb spc spe spi spl spp spr sps sr- sra srb src sre sri srl srp srr srs ss- ssa ssb ssc sse ssi ssl ssp ssr sss