a-a a-b a-t aaa aab aad aan aao aar aat aaw ab- aba abb abd abn abo abr abt abw ad- ada adb add adn ado adr adt adw an- ana anb and ann ano anr ant aoa aob aod aon aoo aor aot aow ar- ara arb ard arn aro arr art arw at- ata atb atd atn ato atr att atw aw- awa awb awd awn awo awr awt aww baa bab bad ban bao bar bat baw bba bbb bbd bbn bbo bbr bbt bbw bda bdb bdd bdo bdr bdt bdw bna bnb bnd bnn bno bnr bnt bnw boa bob bod bon boo bor bot bow bra brb brd brn bro brr brt brw bta btb btd btn bto btr btt btw bwa bwb bwd bwo bwr daa dab dad dan dao dar dat daw dba dbb dbd dbn dbo dbr dbt dda ddb ddd ddn ddo ddr ddt ddw dna dnb dnd dnn dno dnr dnt dnw doa dob dod don doo dor dot dow dra drb drd drn dro drr drt drw dta dtb dtd dtn dto dtr dtt dtw dwa dwb dwn dwo dwr dwt dww naa nab nad nan nao nar nat naw nba nbb nbd nbn nbo nbr nbt nbw nda ndb ndd ndn ndo ndr ndt nna nnb nnn nno nnt nnw no- noa nob nod non noo nor not now nra nrb nrd nrn nro nrr nrt nrw nta ntb ntd ntn nto ntr ntt nwa nwb nwd nwn nwo nwr nwt oaa oab oad oan oao oar oat oaw ob- oba obb obd obn obo obr obt obw oda odb odd odn odo odr odt on- ona onb ond onn ono onr ont oo- ooa oob ood oon ooo oor oot oow or- ora orb ord orn oro orr ort ot- ota otb otd otn oto otr ott otw owa owb owd own owo owt oww ra- raa rab rad ran rao rar rat raw rba rbb rbd rbn rbo rbr rbt rbw rda rdb rdd rdn rdo rdr rdt rna rnb rnd rnn rno rnr rnt rnw roa rob rod ron roo ror rot row rra rrb rrd rrn rrr rrt rta rtb rtd rtn rto rtr rtt rtw rwa rwb rwd rwr taa tab tad tan tao tar tat taw tba tbb tbd tbn tbo tbr tbt tda tdb tdd tdn tdo tdr tdt tdw tna tnb tnd tnn tno tnr tnt tnw to- toa tob tod ton too tor tot tow tra trb trd trn tro trr trt trw tta ttb ttd ttn tto ttr ttt ttw twa twb twd twn two twr twt tww waa wab wad wan wao war wat waw wba wbb wbd wbn wbo wbr wbt wbw wda wdb wdr wdt wn- wna wnd wnn wno wnt wnw woa wob wod won woo wor wot wow wr- wra wrd wrn wro wrr wrt wrw wta wtb wtd wtn wto wtr wtt wtw wwa wwd wwn wwo wwt www