Paddle/paddle/trainer/tests/sample_data.txt

0 1 2 -1
2 3 -1 2
1 2 2 1
0 2 1 2
1 3 1 2
1 1 2 1
0 3 -1 2
1 -2 2 1
2 2 1 2
1 3 1 2
 1 2 -1
 3 -1 2
 2 2 1
 2 1 2
 3 1 2
 1 2 1
 3 -1 2
 -2 2 1
 2 1 2
 3 1 2