-er a-a a-b a-i a-t aaa aab aad aae aai aan aao aar aas aat aau ab- aba abb abd abe abi abn abo abr abs abt abu ad- ada adb add ade adi adn ado adr ads adt adu aea aeb aed aee aei aen aeo aer aes aet aeu ai- aia aib aid aie aii ain aio air ais ait aiu an- ana anb and ane ani ann ano anr ans ant anu aoa aob aod aoe aoi aon aoo aor aos aot aou ar- ara arb ard are ari arn aro arr ars art aru as- asa asb asd ase asi asn aso asr ass ast asu at- ata atb atd ate ati atn ato atr ats att atu au- aua aub aud aue aui aun auo aur aus aut b-u baa bab bad bae bai ban bao bar bas bat bau bba bbb bbd bbe bbi bbn bbo bbr bbs bbt bbu bda bdb bdd bde bdi bdo bdr bds bdt bdu be- bea beb bed bee bei ben beo ber bes bet beu bi- bia bib bid bie bii bin bio bir bis bit biu bna bnb bnd bne bni bnn bno bnr bns bnt bnu boa bob bod boe boi bon boo bor bos bot bou bra brb brd bre bri brn bro brr brs brt bru bsa bsb bsd bse bsi bsn bso bsr bss bst bsu bta btb btd bte bti btn bto btr bts btt btu bua bub bud bue bui bun buo bur bus but buu daa dab dad dae dai dan dao dar das dat dau dba dbb dbd dbe dbi dbn dbo dbr dbs dbt dbu dda ddb ddd dde ddi ddn ddo ddr dds ddt ddu de- dea deb ded dee dei den deo der des det deu di- dia dib did die dii din dio dir dis dit diu dna dnb dnd dne dni dnn dno dnr dns dnt doa dob dod doe doi don doo dor dos dot dou dra drb drd dre dri drn dro drr drs drt dru dsa dsb dsd dse dsi dsn dso dsr dss dst dsu dta dtb dtd dte dti dtn dto dtr dts dtt dtu dua dub dud due dui dun duo dur dus dut eaa eab ead eae eai ean eao ear eas eat eau eba ebb ebd ebe ebi ebn ebo ebr ebs ebt ebu ed- eda edb edd ede edi edn edo edr eds edt edu eea eeb eed eee een eeo eer ees eet eia eib eid eie eii ein eio eir eis eit eiu en- ena enb end ene eni enn eno enr ens ent enu eo- eoa eob eod eoe eoi eon eoo eor eos eot eou era erb erd ere eri ern ero err ers ert eru es- esa esb esd ese esi esn eso esr ess est esu eta etb etd ete eti etn eto etr ets ett etu eu- eua eub eud eue eui eun eur eus eut i-d ia- iaa iab iad iae iai ian iao iar ias iat iau iba ibb ibd ibe ibi ibn ibo ibr ibs ibt ibu ida idb idd ide idi idn ido idr ids idt idu ie- iea ied iee iei ien ier ies iet iia iib iid iie iii iin iio iir iis iit iiu in- ina inb ind ine ini inn ino inr ins int inu io- ioa iob iod ioe ioi ion ioo ior ios iot iou ir- ira irb ird ire iri irn iro irr irs irt iru is- isa isb isd ise isi isn iso isr iss ist isu ita itb itd ite iti itn ito its itt itu iu- iua iub iud iue iui iur ius iut n-i naa nab nad nae nai nan nao nar nas nat nau nba nbb nbd nbe nbi nbn nbo nbr nbs nbt nbu nda ndb ndd nde ndi ndn ndo ndr nds ndt ndu ne- nea neb ned nee nei nen neo ner nes net neu nia nib nid nie nii nin nio nir nis nit niu nna nnb nne nni nnn nno nns nnt nnu no- noa nob nod noe noi non noo nor nos not nou nra nrb nrd nre nri nrn nro nrr nrs nrt nru nsa nsb nsd nse nsi nsn nso nsr nss nst nsu nta ntb ntd nte nti ntn nto ntr nts ntt ntu nua nub nud nue nui nun nuo nur nus nut nuu o-i oaa oab oad oae oai oan oao oar oas oat oau ob- oba obb obd obe obi obn obo obr obs obt obu oda odb odd ode odi odn odo odr ods odt odu oea oeb oed oee oei oen oeo oer oes oet oia oib oid oie oii oin oio oir ois oit oiu on- ona onb ond one oni onn ono onr ons ont onu oo- ooa oob ood ooi oon ooo oor oos oot or- ora orb ord ore ori orn oro orr ors ort oru os- osa osb osd ose osi osn oso osr oss ost osu ot- ota otb otd ote oti otn oto otr ots ott otu ou- oua oud oue oui oun ouo our ous out ra- raa rab rad rae rai ran rao rar ras rat rau rba rbb rbd rbe rbi rbn rbo rbr rbs rbt rbu rda rdb rdd rde rdi rdn rdo rdr rds rdt rdu re- rea reb red ree rei ren reo rer res ret reu ria rib rid rie rii rin rio rir ris rit rna rnb rnd rni rnn rno rnr rns rnt rnu roa rob rod roe roi ron roo ror ros rot rou rra rrb rrd rri rrn rrr rrs rrt rru rsa rsb rsd rse rsi rsn rso rsr rss rst rsu rta rtb rtd rte rti rtn rto rtr rts rtt rtu rua rub rud rue rui run ruo rur rus rut ruu saa sab sad sae sai san sao sar sas sat sau sba sbb sbd