-al -er -ol -up a-a a-b a-c aaa aab aac aae aal aan aao aap aar aau ab- aba abb abc abe abl abn abo abp abr abu ac- aca acb acc ace acl acn aco acp acr acu aea aeb aec aee ael aen aeo aep aer aeu al- ala alb alc ale all aln alo alp alr alu an- ana anb anc ane anl ann ano anp anr anu aoa aob aoc aoe aol aon aoo aop aor aou ap- apa apb apc ape apl apn apo app apr apu ar- ara arb arc are arl arn aro arp arr aru au- aua aub auc aue aul aun auo aup aur b-p b-u baa bab bac bae bal ban bao bap bar bau bba bbb bbc bbe bbl bbn bbo bbp bbr bbu bca bcb bcc bce bcl bcn bco bcp bcr bcu be- bea beb bec bee bel ben beo bep ber beu bla blb blc ble bll bln blo blp blr blu bna bnb bnc bne bnl bnn bno bnp bnr bnu boa bob boc boe bol bon boo bop bor bou bpa bpb bpc bpe bpl bpn bpo bpp bpr bpu bra brb bre brl brn bro brp brr bru bua bub buc bue bul bun buo bup bur buu c-- caa cab cac cae cal can cao cap car cau cba cbb cbc cbe cbl cbn cbo cbp cbr cbu cca ccb ccc cce ccl ccn cco ccp ccr ccu ce- cea ceb cec cee cel cen ceo cep cer ceu cl- cla clb clc cle cll cln clo clp clr clu cn- cna cnb cnc cne cnl cnn cno cnp cnr cnu co- coa cob coc coe col con coo cop cor cou cpa cpb cpc cpe cpl cpn cpo cpp cpr cpu cra crb crc cre crl crn cro crp crr cru cua cub cuc cue cul cun cuo cup cur cuu eaa eab eac eae eal ean eao eap ear eau eba ebb ebc ebe ebl ebn ebo ebp ebr ebu ec- eca ecb ecc ece ecl ecn eco ecr ecu eea eeb eec eee eel een eeo eep eer ela elb elc ele ell eln elo elp elr elu en- ena enb enc ene enl enn eno enp enr enu eo- eoa eob eoc eoe eol eon eoo eop eor eou ep- epa epb epc epe epl epn epo epp epr epu era erb erc ere erl ern ero erp err eru eu- eua eub euc eue eul eun eup eur l-p la- laa lab lac lae lal lan lao lap lar lau lba lbb lbc lbe lbl lbo lbp lbr lbu lca lcb lcc lce lcl lcn lco lcp lcr lcu lea leb lec lee lel len leo lep ler leu lla llb llc lle lll lln llo llp llr llu lna lnb lnc lne lnl lnn lno lnp lnr lnu loa lob loc loe lol lon loo lop lor lou lpa lpb lpc lpe lpl lpn lpo lpp lpr lpu lra lrb lrc lrn lro lrp lrr lru lua lub luc lue lul lun luo lup lur luu naa nab nac nae nal nan nao nap nar nau nba nbb nbc nbe nbl nbn nbo nbp nbr nbu nca ncb ncc nce ncl ncn nco ncp ncr ncu ne- nea neb nec nee nel nen neo nep ner neu nla nlb nlc nle nll nln nlo nlp nlr nlu nna nnb nnc nne nnl nnn nno nnp nnu no- noa nob noc noe nol non noo nop nor nou npa npb npc npe npl npn npo npp npr npu nra nrb nrc nre nrl nrn nro nrp nrr nru nua nub nuc nue nul nun nuo nup nur nuu oaa oab oac oae oal oan oao oap oar oau ob- oba obb obc obe obl obn obo obp obr obu oc- oca ocb occ ocl ocn oco ocp ocr ocu oea oeb oec oee oel oen oeo oep oer ola olb olc ole oll oln olo olp olu on- ona onb onc one onl onn ono onp onr onu oo- ooa oob ooc ool oon ooo oop oor op- opa opb opc ope opl opn opo opp opr or- ora orb orc ore orl orn oro orp orr oru ou- oua ouc oue oul oun ouo oup our p-p paa pab pac pae pal pan pao pap par pau pba pbb pbc pbe pbl pbn pbo pbp pbr pbu pca pcb pcc pce pcl pcn pco pcp pcr pcu pea peb pec pee pel pen peo pep per peu pla plb plc ple pll pln plo plp plr plu pn- pna pnb pnc pne pnl pnn pno pnp pnr pnu poa pob poc poe pol pon poo pop por pou ppa ppb ppc ppe ppl ppn ppo ppp ppr ppu pra prb prc pre prl prn pro prp prr pru pua pub puc pue pul pun pup pur puu ra- raa rab rac rae ral ran rao rap rar rau rba rbb rbc rbe rbl rbn rbo rbp rbr rbu rca rcb rcc rce rcl rcn rco rcp rcr rcu re- rea reb rec ree rel ren reo rep rer reu rla rlc rle rll rln rlo rlp rlr rlu rna rnb rnc rnn rno rnp rnr rnu roa rob roc roe rol ron roo rop ror rou rpa rpb rpc rpe rpl rpn rpo rpp rpr rpu rra rrb rrc rrl rrn rrp rrr rru rua rub ruc rue run ruo rup rur ruu ua- uaa uab uac uae ual uan uao uap uar uau uba ubb ubc ube ubl ubn ubo ubp ubr ubu uca ucb ucc uce ucl ucn uco ucp ucr ucu uea ueb uec uee uel uen uep uer ula ulb ulc ule ull uln ulo ulp ulr ulu un- una unb unc une unl unn uno unp unr unu uoa uob uoc uoe uol uon uoo uop uor up- upa upb upc upe upn upo upp upr upu ur- ura urb urc