On which side of the picture is the cart?
The cart is on the right of the image.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of    1
2     0  to the right of    7
3     1  to the right of    4
4     1   to the left of    0
5     3   to the left of   10
6     4   to the left of    1
7     4   to the left of    0
8     6  to the right of    8
9     7   to the left of    0
10    8   to the left of    6
11   10  to the right of    3