-al -er -ic -up a-a a-b a-c a-i aaa aab aac aae aai aal aap aar aas aau ab- aba abb abc abe abi abl abp abr abs abu ac- aca acb acc ace aci acl acp acr acs acu aea aeb aec aee aei ael aep aer aes aeu ai- aia aib aic aie aii ail aip air ais aiu al- ala alb alc ale ali all alp alr als alu ap- apa apb apc ape api apl app apr aps apu ar- ara arb arc are ari arl arp arr ars aru as- asa asb asc ase asi asl asp asr ass asu au- aua aub auc aue aui aul aup aur aus b-p b-u baa bab bac bae bai bal bap bar bas bau bba bbb bbc bbe bbi bbl bbp bbr bbs bbu bca bcb bcc bce bci bcl bcp bcr bcs bcu be- bea beb bec bee bei bel bep ber bes beu bi- bia bib bic bie bii bil bip bir bis biu bla blb blc ble bli bll blp blr bls blu bpa bpb bpc bpe bpi bpl bpp bpr bps bpu bra brb bre bri brl brp brr brs bru bsa bsb bsc bse bsi bsl bsp bsr bss bsu bua bub buc bue bui bul bup bur bus buu c-- caa cab cac cae cai cal cap car cas cau cba cbb cbc cbe cbi cbl cbp cbr cbs cbu cca ccb ccc cce cci ccl ccp ccr ccs ccu ce- cea ceb cec cee cei cel cep cer ces ceu ci- cia cib cic cie cii cil cip cir cis ciu cl- cla clb clc cle cli cll clp clr cls clu cpa cpb cpc cpe cpi cpl cpp cpr cps cpu cra crb crc cre cri crl crp crr crs cru csa csb csc cse csi csl csp csr css csu cua cub cuc cue cui cul cup cur cus cuu eaa eab eac eae eai eal eap ear eas eau eba ebb ebc ebe ebi ebl ebp ebr ebs ebu ec- eca ecb ecc ece eci ecl ecr ecs ecu eea eeb eec eee eel eep eer ees eia eib eic eie eii eil eip eir eis eiu ela elb elc ele eli ell elp elr els elu ep- epa epb epc epe epi epl epp epr eps epu era erb erc ere eri erl erp err ers eru es- esa esb esc ese esi esl esp esr ess esu eu- eua eub euc eue eui eul eup eur eus ia- iaa iab iac iae iai ial iap iar ias iau iba ibb ibc ibe ibi ibl ibp ibr ibs ibu ica icb icc ice ici icl icp icr ics icu ie- iea iec iee iei iel iep ier ies iia iib iic iie iii iil iip iir iis iiu il- ila ilb ilc ile ili ill ilp ilr ils ilu ipa ipb ipc ipe ipi ipl ipp ipr ips ipu ir- ira irb irc ire iri irl irp irr irs iru is- isa isb isc ise isi isl isp isr iss isu iu- iua iub iuc iue iui iup iur ius l-p la- laa lab lac lae lai lal lap lar las lau lba lbb lbc lbe lbi lbl lbp lbr lbs lbu lca lcb lcc lce lci lcl lcp lcr lcs lcu lea leb lec lee lei lel lep ler les leu lia lib lic lie lii lil lip lir lis liu lla llb llc lle lli lll llp llr lls llu lpa lpb lpc lpe lpi lpl lpp lpr lps lpu lra lrb lrc lri lrp lrr lrs lru lsa lsb lsc lse lsi lsl lsp lsr lss lsu lua lub luc lue lui lul lup lur lus luu p-p paa pab pac pae pai pal pap par pas pau pba pbb pbc pbe pbi pbl pbp pbr pbs pbu pca pcb pcc pce pci pcl pcp pcr pcs pcu pea peb pec pee pei pel pep per pes peu pia pib pic pie pii pil pip pir pis piu pla plb plc ple pli pll plp plr pls plu ppa ppb ppc ppe ppi ppl ppp ppr pps ppu pra prb prc pre pri prl prp prr prs pru ps- psa psb psc pse psi psl psp psr pss psu pua pub puc pue pui pul pup pur pus puu ra- raa rab rac rae rai ral rap rar ras rau rba rbb rbc rbe rbi rbl rbp rbr rbs rbu rca rcb rcc rce rci rcl rcp rcr rcs rcu re- rea reb rec ree rei rel rep rer res reu ria rib ric rie rii ril rip rir ris rla rlc rle rli rll rlp rlr rls rlu rpa rpb rpc rpe rpi rpl rpp rpr rps rpu rra rrb rrc rri rrl rrp rrr rrs rru rsa rsb rsc rse rsi rsl rsp rsr rss rsu rua rub ruc rue rui rup rur rus ruu saa sab sac sae sai sal sap sar sas sau sba sbb sbc sbe sbi sbl sbp sbr sbs sbu sca scb scc sce sci scl scp scr scs scu se- sea seb sec see sei sel sep ser ses seu sia sib sic sie sii sil sip sir sis siu sla slb slc sle sli sll slp slr sls slu spa spb spc spe spi spl spp spr sps spu sr- sra srb src sre sri srl srp srr srs ss- ssa ssb ssc sse ssi ssl ssp ssr sss ssu sua sub suc sue sui sul sup sur sus suu ua- uaa uab uac uae uai ual uap uar uas uau uba ubb ubc ube ubi ubl ubp ubr ubs ubu uca ucb ucc uce uci ucl ucp ucr ucs ucu uea ueb uec uee uei uel uep uer ues uia uib uic uie uii uil uip uir uis uiu ula ulb ulc ule uli ull ulp ulr uls ulu up- upa upb upc upe upi upp upr ups upu ur- ura urb urc