-al -er -ic -ol a-a a-b a-c a-i aaa aab aac aae aai aal aan aao aar aau ab- aba abb abc abe abi abl abn abo abr abu ac- aca acb acc ace aci acl acn aco acr acu aea aeb aec aee aei ael aen aeo aer aeu ai- aia aib aic aie aii ail ain aio air aiu al- ala alb alc ale ali all aln alo alr alu an- ana anb anc ane ani anl ann ano anr anu aoa aob aoc aoe aoi aol aon aoo aor aou ar- ara arb arc are ari arl arn aro arr aru au- aua aub auc aue aui aul aun auo aur b-u baa bab bac bae bai bal ban bao bar bau bba bbb bbc bbe bbi bbl bbn bbo bbr bbu bca bcb bcc bce bci bcl bcn bco bcr bcu be- bea beb bec bee bei bel ben beo ber beu bi- bia bib bic bie bii bil bin bio bir biu bla blb blc ble bli bll bln blo blr blu bna bnb bnc bne bni bnl bnn bno bnr bnu boa bob boc boe boi bol bon boo bor bou bra brb bre bri brl brn bro brr bru bua bub buc bue bui bul bun buo bur buu c-- caa cab cac cae cai cal can cao car cau cba cbb cbc cbe cbi cbl cbn cbo cbr cbu cca ccb ccc cce cci ccl ccn cco ccr ccu ce- cea ceb cec cee cei cel cen ceo cer ceu ci- cia cib cic cie cii cil cin cio cir ciu cl- cla clb clc cle cli cll cln clo clr clu cn- cna cnb cnc cne cni cnl cnn cno cnr cnu co- coa cob coc coe coi col con coo cor cou cra crb crc cre cri crl crn cro crr cru cua cub cuc cue cui cul cun cuo cur cuu eaa eab eac eae eai eal ean eao ear eau eba ebb ebc ebe ebi ebl ebn ebo ebr ebu ec- eca ecb ecc ece eci ecl ecn eco ecr ecu eea eeb eec eee eel een eeo eer eia eib eic eie eii eil ein eio eir eiu ela elb elc ele eli ell eln elo elr elu en- ena enb enc ene eni enl enn eno enr enu eo- eoa eob eoc eoe eoi eol eon eoo eor eou era erb erc ere eri erl ern ero err eru eu- eua eub euc eue eui eul eun eur ia- iaa iab iac iae iai ial ian iao iar iau iba ibb ibc ibe ibi ibl ibn ibo ibr ibu ica icb icc ice ici icl icn ico icr icu ie- iea iec iee iei iel ien ier iia iib iic iie iii iil iin iio iir iiu il- ila ilb ilc ile ili ill iln ilo ilr ilu in- ina inb inc ine ini inl inn ino inr inu io- ioa iob ioc ioe ioi iol ion ioo ior iou ir- ira irb irc ire iri irl irn iro irr iru iu- iua iub iuc iue iui iur la- laa lab lac lae lai lal lan lao lar lau lba lbb lbc lbe lbi lbl lbo lbr lbu lca lcb lcc lce lci lcl lcn lco lcr lcu lea leb lec lee lei lel len leo ler leu lia lib lic lie lii lil lin lio lir liu lla llb llc lle lli lll lln llo llr llu lna lnb lnc lne lni lnl lnn lno lnr lnu loa lob loc loe loi lol lon loo lor lou lra lrb lrc lri lrn lro lrr lru lua lub luc lue lui lul lun luo lur luu n-i naa nab nac nae nai nal nan nao nar nau nba nbb nbc nbe nbi nbl nbn nbo nbr nbu nca ncb ncc nce nci ncl ncn nco ncr ncu ne- nea neb nec nee nei nel nen neo ner neu nia nib nic nie nii nil nin nio nir niu nla nlb nlc nle nli nll nln nlo nlr nlu nna nnb nnc nne nni nnl nnn nno nnu no- noa nob noc noe noi nol non noo nor nou nra nrb nrc nre nri nrl nrn nro nrr nru nua nub nuc nue nui nul nun nuo nur nuu o-i oaa oab oac oae oai oal oan oao oar oau ob- oba obb obc obe obi obl obn obo obr obu oc- oca ocb occ oci ocl ocn oco ocr ocu oea oeb oec oee oei oel oen oeo oer oia oib oic oie oii oil oin oio oir oiu ola olb olc ole oli oll oln olo olu on- ona onb onc one oni onl onn ono onr onu oo- ooa oob ooc ooi ool oon ooo oor or- ora orb orc ore ori orl orn oro orr oru ou- oua ouc oue oui oul oun ouo our ra- raa rab rac rae rai ral ran rao rar rau rba rbb rbc rbe rbi rbl rbn rbo rbr rbu rca rcb rcc rce rci rcl rcn rco rcr rcu re- rea reb rec ree rei rel ren reo rer reu ria rib ric rie rii ril rin rio rir rla rlc rle rli rll rln rlo rlr rlu rna rnb rnc rni rnn rno rnr rnu roa rob roc roe roi rol ron roo ror rou rra rrb rrc rri rrl rrn rrr rru rua rub ruc rue rui run ruo rur ruu ua- uaa uab uac uae uai ual uan uao uar uau uba ubb ubc ube ubi ubl ubn ubo ubr ubu uca ucb ucc uce uci ucl ucn uco ucr ucu uea ueb uec uee uei uel uen uer uia uib uic uie uii uil uin uio uir uiu ula ulb ulc ule uli ull uln ulo ulr ulu un- una unb unc une uni unl unn uno unr unu uoa uob uoc uoe uol uon uoo uor ur- ura urb urc ure