-er a-a a-b a-i a-t aaa aab aad aae aai aao aar aas aat aaw ab- aba abb abd abe abi abo abr abs abt abw ad- ada adb add ade adi ado adr ads adt adw aea aeb aed aee aei aeo aer aes aet aew ai- aia aib aid aie aii aio air ais ait aiw aoa aob aod aoe aoi aoo aor aos aot aow ar- ara arb ard are ari aro arr ars art arw as- asa asb asd ase asi aso asr ass ast asw at- ata atb atd ate ati ato atr ats att atw aw- awa awb awd awe awi awo awr aws awt aww baa bab bad bae bai bao bar bas bat baw bba bbb bbd bbe bbi bbo bbr bbs bbt bbw bda bdb bdd bde bdi bdo bdr bds bdt bdw be- bea beb bed bee bei beo ber bes bet bew bi- bia bib bid bie bii bio bir bis bit biw boa bob bod boe boi boo bor bos bot bow bra brb brd bre bri bro brr brs brt brw bsa bsb bsd bse bsi bso bsr bss bst bsw bta btb btd bte bti bto btr bts btt btw bwa bwb bwd bwi bwo bwr bws daa dab dad dae dai dao dar das dat daw dba dbb dbd dbe dbi dbo dbr dbs dbt dda ddb ddd dde ddi ddo ddr dds ddt ddw de- dea deb ded dee dei deo der des det dew di- dia dib did die dii dio dir dis dit diw doa dob dod doe doi doo dor dos dot dow dra drb drd dre dri dro drr drs drt drw dsa dsb dsd dse dsi dso dsr dss dst dsw dta dtb dtd dte dti dto dtr dts dtt dtw dwa dwb dwe dwi dwo dwr dws dwt dww eaa eab ead eae eai eao ear eas eat eaw eba ebb ebd ebe ebi ebo ebr ebs ebt ebw ed- eda edb edd ede edi edo edr eds edt edw eea eeb eed eee eeo eer ees eet eew eia eib eid eie eii eio eir eis eit eo- eoa eob eod eoe eoi eoo eor eos eot eow era erb erd ere eri ero err ers ert erw es- esa esb esd ese esi eso esr ess est esw eta etb etd ete eti eto etr ets ett etw ewa ewb ewd ewe ewi ewo ewr ews ewt eww i-d ia- iaa iab iad iae iai iao iar ias iat iaw iba ibb ibd ibe ibi ibo ibr ibs ibt ibw ida idb idd ide idi ido idr ids idt idw ie- iea ied iee iei ier ies iet iia iib iid iie iii iio iir iis iit iiw io- ioa iob iod ioe ioi ioo ior ios iot iow ir- ira irb ird ire iri iro irr irs irt is- isa isb isd ise isi iso isr iss ist isw ita itb itd ite iti ito its itt iwa iwb iwd iwe iwi iwo iwr iws iwt iww o-i oaa oab oad oae oai oao oar oas oat oaw ob- oba obb obd obe obi obo obr obs obt obw oda odb odd ode odi odo odr ods odt oea oeb oed oee oei oeo oer oes oet oia oib oid oie oii oio oir ois oit oo- ooa oob ood ooi ooo oor oos oot oow or- ora orb ord ore ori oro orr ors ort os- osa osb osd ose osi oso osr oss ost osw ot- ota otb otd ote oti oto otr ots ott otw owa owb owd owe owi owo ows owt oww ra- raa rab rad rae rai rao rar ras rat raw rba rbb rbd rbe rbi rbo rbr rbs rbt rbw rda rdb rdd rde rdi rdo rdr rds rdt re- rea reb red ree rei reo rer res ret rew ria rib rid rie rii rio rir ris rit roa rob rod roe roi roo ror ros rot row rra rrb rrd rri rrr rrs rrt rsa rsb rsd rse rsi rso rsr rss rst rsw rta rtb rtd rte rti rto rtr rts rtt rtw rwa rwb rwd rwe rwi rwr rws saa sab sad sae sai sao sar sas sat saw sba sbb sbd sbe sbi sbo sbr sbs sbt sbw sda sdb sdd sde sdi sdo sdr sds sdt sdw se- sea seb sed see sei seo ser ses set sew sia sib sid sie sii sio sir sis sit siw soa sob sod soe soi soo sor sos sot sow sr- sra srb srd sre sri sro srr srs srt srw ss- ssa ssb ssd sse ssi sso ssr sss sst ssw sta stb std ste sti sto str sts stt stw swa swb swd swe swi swo swr sws swt taa tab tad tae tai tao tar tas tat taw tba tbb tbd tbe tbi tbo tbr tbs tbt tda tdb tdd tde tdi tdo tdr tds tdt tdw te- tea teb ted tee tei teo ter tes tet tew tia tib tid tie tii tio tir tis tit tiw to- toa tob tod toe toi too tor tos tot tow tra trb trd tre tri tro trr trs trt trw tsa tsb tsd tse tsi tso tsr tss tst tsw tta ttb ttd tte tti tto ttr tts ttt ttw twa twb twd twe twi two twr tws twt tww waa wab wad wae wai wao war was wat waw wba wbb wbd wbe wbi wbo wbr wbs wbt wbw wda wdb wdi wdr wds wdt wea web wed wee wei weo wer wes wet wew wia wib wid wie wii wir wis wit woa wob wod woe woi woo wor wos wot wow wr- wra wrd wre wri wro wrr wrs wrt wrw wsa wsb wsd wse wsi wso wsr wss wst wsw wta wtb wtd wti wto wtr wts wtt wtw wwa wwd wwe wwi wwo wwt www