-al -er -up a-a a-b a-c aaa aab aac aae aal aap aar aas aau ab- aba abb abc abe abl abp abr abs abu ac- aca acb acc ace acl acp acr acs acu aea aeb aec aee ael aep aer aes aeu al- ala alb alc ale all alp alr als alu ap- apa apb apc ape apl app apr aps apu ar- ara arb arc are arl arp arr ars aru as- asa asb asc ase asl asp asr ass asu au- aua aub auc aue aul aup aur aus b-p b-u baa bab bac bae bal bap bar bas bau bba bbb bbc bbe bbl bbp bbr bbs bbu bca bcb bcc bce bcl bcp bcr bcs bcu be- bea beb bec bee bel bep ber bes beu bla blb blc ble bll blp blr bls blu bpa bpb bpc bpe bpl bpp bpr bps bpu bra brb bre brl brp brr brs bru bsa bsb bsc bse bsl bsp bsr bss bsu bua bub buc bue bul bup bur bus buu c-- caa cab cac cae cal cap car cas cau cba cbb cbc cbe cbl cbp cbr cbs cbu cca ccb ccc cce ccl ccp ccr ccs ccu ce- cea ceb cec cee cel cep cer ces ceu cl- cla clb clc cle cll clp clr cls clu cpa cpb cpc cpe cpl cpp cpr cps cpu cra crb crc cre crl crp crr crs cru csa csb csc cse csl csp csr css csu cua cub cuc cue cul cup cur cus cuu eaa eab eac eae eal eap ear eas eau eba ebb ebc ebe ebl ebp ebr ebs ebu ec- eca ecb ecc ece ecl ecr ecs ecu eea eeb eec eee eel eep eer ees ela elb elc ele ell elp elr els elu ep- epa epb epc epe epl epp epr eps epu era erb erc ere erl erp err ers eru es- esa esb esc ese esl esp esr ess esu eu- eua eub euc eue eul eup eur eus l-p la- laa lab lac lae lal lap lar las lau lba lbb lbc lbe lbl lbp lbr lbs lbu lca lcb lcc lce lcl lcp lcr lcs lcu lea leb lec lee lel lep ler les leu lla llb llc lle lll llp llr lls llu lpa lpb lpc lpe lpl lpp lpr lps lpu lra lrb lrc lrp lrr lrs lru lsa lsb lsc lse lsl lsp lsr lss lsu lua lub luc lue lul lup lur lus luu p-p paa pab pac pae pal pap par pas pau pba pbb pbc pbe pbl pbp pbr pbs pbu pca pcb pcc pce pcl pcp pcr pcs pcu pea peb pec pee pel pep per pes peu pla plb plc ple pll plp plr pls plu ppa ppb ppc ppe ppl ppp ppr pps ppu pra prb prc pre prl prp prr prs pru ps- psa psb psc pse psl psp psr pss psu pua pub puc pue pul pup pur pus puu ra- raa rab rac rae ral rap rar ras rau rba rbb rbc rbe rbl rbp rbr rbs rbu rca rcb rcc rce rcl rcp rcr rcs rcu re- rea reb rec ree rel rep rer res reu rla rlc rle rll rlp rlr rls rlu rpa rpb rpc rpe rpl rpp rpr rps rpu rra rrb rrc rrl rrp rrr rrs rru rsa rsb rsc rse rsl rsp rsr rss rsu rua rub ruc rue rup rur rus ruu saa sab sac sae sal sap sar sas sau sba sbb sbc sbe sbl sbp sbr sbs sbu sca scb scc sce scl scp scr scs scu se- sea seb sec see sel sep ser ses seu sla slb slc sle sll slp slr sls slu spa spb spc spe spl spp spr sps spu sr- sra srb src sre srl srp srr srs ss- ssa ssb ssc sse ssl ssp ssr sss ssu sua sub suc sue sul sup sur sus suu ua- uaa uab uac uae ual uap uar uas uau uba ubb ubc ube ubl ubp ubr ubs ubu uca ucb ucc uce ucl ucp ucr ucs ucu uea ueb uec uee uel uep uer ues ula ulb ulc ule ull ulp ulr uls ulu up- upa upb upc upe upp upr ups upu ur- ura urb urc ure url urp urr urs uru usa usb usc use usl usp usr uss usu uua uuc uue uur uus uuu