-al -er -up a-a a-b a-c aaa aab aac aae aal aan aap aar aau ab- aba abb abc abe abl abn abp abr abu ac- aca acb acc ace acl acn acp acr acu aea aeb aec aee ael aen aep aer aeu al- ala alb alc ale all aln alp alr alu an- ana anb anc ane anl ann anp anr anu ap- apa apb apc ape apl apn app apr apu ar- ara arb arc are arl arn arp arr aru au- aua aub auc aue aul aun aup aur b-p b-u baa bab bac bae bal ban bap bar bau bba bbb bbc bbe bbl bbn bbp bbr bbu bca bcb bcc bce bcl bcn bcp bcr bcu be- bea beb bec bee bel ben bep ber beu bla blb blc ble bll bln blp blr blu bna bnb bnc bne bnl bnn bnp bnr bnu bpa bpb bpc bpe bpl bpn bpp bpr bpu bra brb bre brl brn brp brr bru bua bub buc bue bul bun bup bur buu c-- caa cab cac cae cal can cap car cau cba cbb cbc cbe cbl cbn cbp cbr cbu cca ccb ccc cce ccl ccn ccp ccr ccu ce- cea ceb cec cee cel cen cep cer ceu cl- cla clb clc cle cll cln clp clr clu cn- cna cnb cnc cne cnl cnn cnp cnr cnu cpa cpb cpc cpe cpl cpn cpp cpr cpu cra crb crc cre crl crn crp crr cru cua cub cuc cue cul cun cup cur cuu eaa eab eac eae eal ean eap ear eau eba ebb ebc ebe ebl ebn ebp ebr ebu ec- eca ecb ecc ece ecl ecn ecr ecu eea eeb eec eee eel een eep eer ela elb elc ele ell eln elp elr elu en- ena enb enc ene enl enn enp enr enu ep- epa epb epc epe epl epn epp epr epu era erb erc ere erl ern erp err eru eu- eua eub euc eue eul eun eup eur l-p la- laa lab lac lae lal lan lap lar lau lba lbb lbc lbe lbl lbp lbr lbu lca lcb lcc lce lcl lcn lcp lcr lcu lea leb lec lee lel len lep ler leu lla llb llc lle lll lln llp llr llu lna lnb lnc lne lnl lnn lnp lnr lnu lpa lpb lpc lpe lpl lpn lpp lpr lpu lra lrb lrc lrn lrp lrr lru lua lub luc lue lul lun lup lur luu naa nab nac nae nal nan nap nar nau nba nbb nbc nbe nbl nbn nbp nbr nbu nca ncb ncc nce ncl ncn ncp ncr ncu ne- nea neb nec nee nel nen nep ner neu nla nlb nlc nle nll nln nlp nlr nlu nna nnb nnc nne nnl nnn nnp nnu npa npb npc npe npl npn npp npr npu nra nrb nrc nre nrl nrn nrp nrr nru nua nub nuc nue nul nun nup nur nuu p-p paa pab pac pae pal pan pap par pau pba pbb pbc pbe pbl pbn pbp pbr pbu pca pcb pcc pce pcl pcn pcp pcr pcu pea peb pec pee pel pen pep per peu pla plb plc ple pll pln plp plr plu pn- pna pnb pnc pne pnl pnn pnp pnr pnu ppa ppb ppc ppe ppl ppn ppp ppr ppu pra prb prc pre prl prn prp prr pru pua pub puc pue pul pun pup pur puu ra- raa rab rac rae ral ran rap rar rau rba rbb rbc rbe rbl rbn rbp rbr rbu rca rcb rcc rce rcl rcn rcp rcr rcu re- rea reb rec ree rel ren rep rer reu rla rlc rle rll rln rlp rlr rlu rna rnb rnc rnn rnp rnr rnu rpa rpb rpc rpe rpl rpn rpp rpr rpu rra rrb rrc rrl rrn rrp rrr rru rua rub ruc rue run rup rur ruu ua- uaa uab uac uae ual uan uap uar uau uba ubb ubc ube ubl ubn ubp ubr ubu uca ucb ucc uce ucl ucn ucp ucr ucu uea ueb uec uee uel uen uep uer ula ulb ulc ule ull uln ulp ulr ulu un- una unb unc une unl unn unp unr unu up- upa upb upc upe upn upp upr upu ur- ura urb urc ure url urn urp urr uru uua uuc uue uun uur uuu