a-a a-t aaa aao aat aaw aax aay aoa aoo aot aow aox at- ata ato att atw atx aw- awa awo awt aww awy ax- axa axo axt axx ay- aya ayo ayt ayw ayx oaa oao oat oaw oax oo- ooa ooo oot oow oox ot- ota oto ott otw owa owo owt oww ox- oxa oxo oxt oxx oxy oya oyo t-x taa tao tat taw tax tay to- toa too tot tow tox toy tta tto ttt ttw ttx tty twa two twt tww twx twy txt tya tyo tyt waa wao wat waw wax way woa woo wot wow wox woy wta wto wtt wtw wtx wwa wwo wwt www wxw wxy wy- wya wyo wyt xaa xat xoa xoo xot xox xtx xty xwa xwt xxo xxx xxy xyy yaa yao yat yaw yax yay yoo yot yow yox yoy yta yto ytt yxa yxy yyt yyy