a=pan,b=cat,i=1943,x=0.9997301774748071,y=0.8408385083267972,x2=0.9994604277538093,xy=0.8406116311572011,y2=0.7070093970852334
a=pan,b=dog,i=552,x=0.9993077485337599,y=0.10019859749555626,x2=0.9986159762796124,xy=0.10012923486952477,y2=0.010039758940076493
a=wye,b=pan,i=568,x=0.9973387930844961,y=0.5711453274816489,x2=0.9946846681912394,xy=0.569625391586397,y2=0.32620698510412
a=dog,b=pan,i=1613,x=0.997245171384539,y=0.8188847898688517,x2=0.9944979318497786,xy=0.8166289026169553,y2=0.6705722990785534
