feature_a,feature_b,feature_c,feature_d
0.10,0.70,0.20,0.30
0.18,0.62,0.25,0.35
0.24,0.58,0.32,0.40
0.36,0.46,0.42,0.45
0.64,0.30,0.68,0.72
0.72,0.24,0.76,0.82
0.82,0.16,0.84,0.90
0.92,0.08,0.90,0.96