-al -er -ol -up a-a a-b a-c aaa aab aac aad aae aal aao aap aar aas aau ab- aba abb abc abd abe abl abo abp abr abs abu ac- aca acb acc acd ace acl aco acp acr acs acu ad- ada adb adc add ade adl ado adp adr ads adu aea aeb aec aed aee ael aeo aep aer aes aeu al- ala alb alc ald ale all alo alp alr als alu aoa aob aoc aod aoe aol aoo aop aor aos aou ap- apa apb apc apd ape apl apo app apr aps apu ar- ara arb arc ard are arl aro arp arr ars aru as- asa asb asc asd ase asl aso asp asr ass asu au- aua aub auc aud aue aul auo aup aur aus b-p b-u baa bab bac bad bae bal bao bap bar bas bau bba bbb bbc bbd bbe bbl bbo bbp bbr bbs bbu bca bcb bcc bcd bce bcl bco bcp bcr bcs bcu bda bdb bdc bdd bde bdl bdo bdp bdr bds bdu be- bea beb bec bed bee bel beo bep ber bes beu bla blb blc bld ble bll blo blp blr bls blu boa bob boc bod boe bol boo bop bor bos bou bpa bpb bpc bpd bpe bpl bpo bpp bpr bps bpu bra brb brd bre brl bro brp brr brs bru bsa bsb bsc bsd bse bsl bso bsp bsr bss bsu bua bub buc bud bue bul buo bup bur bus buu c-- caa cab cac cad cae cal cao cap car cas cau cba cbb cbc cbd cbe cbl cbo cbp cbr cbs cbu cca ccb ccc ccd cce ccl cco ccp ccr ccs ccu cda cdb cdc cdd cde cdl cdo cdp cdr cds cdu ce- cea ceb cec ced cee cel ceo cep cer ces ceu cl- cla clb clc cld cle cll clo clp clr cls clu co- coa cob coc cod coe col coo cop cor cos cou cpa cpb cpc cpd cpe cpl cpo cpp cpr cps cpu cra crb crc crd cre crl cro crp crr crs cru csa csb csc csd cse csl cso csp csr css csu cua cub cuc cud cue cul cuo cup cur cus cuu daa dab dac dad dae dal dao dap dar das dau dba dbb dbc dbd dbe dbl dbo dbp dbr dbs dbu dca dcb dcc dcd dce dcl dco dcp dcr dcs dcu dda ddb ddc ddd dde ddl ddo ddp ddr dds ddu de- dea deb dec ded dee del deo dep der des deu dl- dla dlb dlc dld dle dll dlo dlp dlr dls dlu doa dob doc dod doe dol doo dop dor dos dou dpa dpb dpc dpd dpe dpl dpo dpp dpr dps dpu dra drb drc drd dre drl dro drp drr drs dru dsa dsb dsc dsd dse dsl dso dsp dsr dss dsu dua dub duc dud due dul duo dup dur dus eaa eab eac ead eae eal eao eap ear eas eau eba ebb ebc ebd ebe ebl ebo ebp ebr ebs ebu ec- eca ecb ecc ecd ece ecl eco ecr ecs ecu ed- eda edb edc edd ede edl edo edp edr eds edu eea eeb eec eed eee eel eeo eep eer ees ela elb elc eld ele ell elo elp elr els elu eo- eoa eob eoc eod eoe eol eoo eop eor eos eou ep- epa epb epc epd epe epl epo epp epr eps epu era erb erc erd ere erl ero erp err ers eru es- esa esb esc esd ese esl eso esp esr ess esu eu- eua eub euc eud eue eul eup eur eus l-p la- laa lab lac lad lae lal lao lap lar las lau lba lbb lbc lbd lbe lbl lbo lbp lbr lbs lbu lca lcb lcc lcd lce lcl lco lcp lcr lcs lcu lda ldb ldc ldd lde ldl ldo ldp ldr lds ldu lea leb lec led lee lel leo lep ler les leu lla llb llc lld lle lll llo llp llr lls llu loa lob loc lod loe lol loo lop lor los lou lpa lpb lpc lpd lpe lpl lpo lpp lpr lps lpu lra lrb lrc lrd lro lrp lrr lrs lru lsa lsb lsc lsd lse lsl lso lsp lsr lss lsu lua lub luc lud lue lul luo lup lur lus luu oaa oab oac oad oae oal oao oap oar oas oau ob- oba obb obc obd obe obl obo obp obr obs obu oc- oca ocb occ ocd ocl oco ocp ocr ocs ocu oda odb odc odd ode odl odo odp odr ods odu oea oeb oec oed oee oel oeo oep oer oes ola olb olc old ole oll olo olp ols olu oo- ooa oob ooc ood ool ooo oop oor oos op- opa opb opc opd ope opl opo opp opr ops or- ora orb orc ord ore orl oro orp orr ors oru os- osa osb osc osd ose osl oso osp osr oss osu ou- oua ouc oud oue oul ouo oup our ous p-p paa pab pac pad pae pal pao pap par pas pau pba pbb pbc pbd pbe pbl pbo pbp pbr pbs pbu pca pcb pcc pcd pce pcl pco pcp pcr pcs pcu pda pdb pdc pdd pde pdl pdo pdp pdr pds pdu pea peb pec ped pee pel peo pep per pes peu pla plb plc pld ple pll plo plp plr pls plu poa pob poc pod poe pol poo pop por pos pou ppa ppb ppc ppd ppe ppl ppo ppp ppr pps ppu pra prb prc prd pre prl pro prp prr prs pru ps- psa psb psc psd pse psl pso psp psr pss psu pua pub puc pud pue pul pup pur pus puu ra- raa rab rac rad rae ral rao rap