{"x1":-4,"x2":1,"x3":3,"y":7.4}
{"x1":3,"x2":2,"x3":-5,"y":14.7}
{"x1":1,"x2":3,"x3":-4,"y":13.9}
{"x1":4,"x2":4,"x3":-8,"y":18.2}
{"x1":-3,"x2":5,"x3":-2,"y":12.1}
{"x1":-1,"x2":6,"x3":-5,"y":14.8}