a=pan,b=cat,i=1943,x=0.99973018,y=0.84083851,x2=0.99946043,xy=0.84061163,y2=0.70700940
a=pan,b=dog,i=552,x=0.99930775,y=0.10019860,x2=0.99861598,xy=0.10012923,y2=0.01003976
a=wye,b=pan,i=568,x=0.99733879,y=0.57114533,x2=0.99468467,xy=0.56962539,y2=0.32620699
a=dog,b=pan,i=1613,x=0.99724517,y=0.81888479,x2=0.99449793,xy=0.81662890,y2=0.67057230
