a-a a-b a-t aaa aab aan aao aar aat aaw aay ab- aba abb abn abo abr abt abw aby an- ana anb ann ano anr ant any aoa aob aon aoo aor aot aow ar- ara arb arn aro arr art arw ary at- ata atb atn ato atr att atw aw- awa awb awn awo awr awt aww awy ay- aya ayn ayo ayr ayt ayw baa bab ban bao bar bat baw bay bba bbb bbn bbo bbr bbt bbw bby bna bnb bnn bno bnr bnt bnw boa bob bon boo bor bot bow boy bra brb brn bro brr brt brw bry bta btb btn bto btr btt btw bty bwa bwb bwo bwr bwy by- bya byn byo byr byt naa nab nan nao nar nat naw nay nba nbb nbn nbo nbr nbt nbw nna nnb nnn nno nnt nnw no- noa nob non noo nor not now noy nra nrb nrn nro nrr nrt nrw nry nta ntb ntn nto ntr ntt nwa nwb nwn nwo nwr nwt nya nyn nyo nyt nyy oaa oab oan oao oar oat oaw ob- oba obb obn obo obr obt obw oby on- ona onb onn ono onr ont ony oo- ooa oob oon ooo oor oot oow or- ora orb orn oro orr ort ory ot- ota otb otn oto otr ott otw owa owb own owo owt oww oya oyo ra- raa rab ran rao rar rat raw ray rba rbb rbn rbo rbr rbt rbw rna rnb rnn rno rnr rnt rnw rny roa rob ron roo ror rot row roy rra rrb rrn rrr rrt rta rtb rtn rto rtr rtt rtw rty rwa rwb rwr rwy ry- rya ryn ryo ryr ryy taa tab tan tao tar tat taw tay tba tbb tbn tbo tbr tbt tna tnb tnn tno tnr tnt tnw to- toa tob ton too tor tot tow toy tra trb trn tro trr trt trw try tta ttb ttn tto ttr ttt ttw tty twa twb twn two twr twt tww twy tya tyn tyo tyr tyt waa wab wan wao war wat waw way wba wbb wbn wbo wbr wbt wbw wn- wna wnn wno wnt wnw wny woa wob won woo wor wot wow woy wr- wra wrn wro wrr wrt wrw wry wta wtb wtn wto wtr wtt wtw wwa wwn wwo wwt www wy- wya wyn wyo wyr wyt yaa yab yan yao yar yat yaw yay ybr yby yna ynn yny yob yon yoo yor yot yow yoy yra yrn yro yrt yta ytn yto ytr ytt yyb yyt yyy