a-a a-b a-t aaa aab aad aae aao aat aaw ab- aba abb abd abe abo abt abw ad- ada adb add ade ado adt adw aea aeb aed aee aeo aet aew aoa aob aod aoe aoo aot aow at- ata atb atd ate ato att atw aw- awa awb awd awe awo awt aww baa bab bad bae bao bat baw bba bbb bbd bbe bbo bbt bbw bda bdb bdd bde bdo bdt bdw be- bea beb bed bee beo bet bew boa bob bod boe boo bot bow bta btb btd bte bto btt btw bwa bwb bwd bwo daa dab dad dae dao dat daw dba dbb dbd dbe dbo dbt dda ddb ddd dde ddo ddt ddw de- dea deb ded dee deo det dew doa dob dod doe doo dot dow dta dtb dtd dte dto dtt dtw dwa dwb dwe dwo dwt dww eaa eab ead eae eao eat eaw eba ebb ebd ebe ebo ebt ebw ed- eda edb edd ede edo edt edw eea eeb eed eee eeo eet eew eo- eoa eob eod eoe eoo eot eow eta etb etd ete eto ett etw ewa ewb ewd ewe ewo ewt eww oaa oab oad oae oao oat oaw ob- oba obb obd obe obo obt obw oda odb odd ode odo odt oea oeb oed oee oeo oet oo- ooa oob ood ooo oot oow ot- ota otb otd ote oto ott otw owa owb owd owe owo owt oww taa tab tad tae tao tat taw tba tbb tbd tbe tbo tbt tda tdb tdd tde tdo tdt tdw te- tea teb ted tee teo tet tew to- toa tob tod toe too tot tow tta ttb ttd tte tto ttt ttw twa twb twd twe two twt tww waa wab wad wae wao wat waw wba wbb wbd wbe wbo wbt wbw wda wdb wdt wea web wed wee weo wet wew woa wob wod woe woo wot wow wta wtb wtd wto wtt wtw wwa wwd wwe wwo wwt www