"A"	"B"	"Y"	"color"	"total"	"per"
"Negative"	"Negative"	17	"neg"	19	89.47
"Negative"	"Positive"	2	"false_pos"	19	10.53
"Positive"	"Negative"	6	"false_neg"	14	42.86
"Positive"	"Positive"	8	"pos"	14	57.14
