Which color is the athletic shoe?
The athletic shoe is blue.
    src        edge_attr  dst
0     1  to the right of    7
1     1  to the right of    4
2     2  to the right of    8
3     4   to the left of    1
4     4   to the left of    6
5     4   to the left of    9
6     6   to the left of    9
7     6  to the right of    4
8     7   to the left of    1
9     7   to the left of    9
10    8   to the left of    2
11    9  to the right of    7
12    9  to the right of    4
13    9  to the right of    6
14   12          holding    7