What color is the cap?
The cap is red.
    src        edge_attr  dst
0     0  to the right of    2
1     0  to the right of    4
2     0  to the right of    3
3     0  to the right of    5
4     1   to the left of    2
5     2      in front of    5
6     2  to the right of    1
7     2   to the left of    0
8     3   to the left of    0
9     4   to the left of    0
10    4               on    2
11    5           behind    2
12    5   to the left of    0