{{3.13,2.74}, {1.08,4.62}, {3.71,0.94}, {2.01,3.81}} {{6.71,3.14}, {7.99,2.75}, {8.27,1.96}, {6.35,3.57}} {{9.45,10.67}, {10.05,5.78}, {13.95,7.46}, {14.72,5.29}} {{3.34,8.98}, {1.95,10.27}, {3.76,7.65}, {4.96,10.64}}