The gate has what color?
The gate is black.
    src        edge_attr  dst
0     1  to the right of    2
1     1  to the right of    3
2     1  to the right of   12
3     1               on    0
4     1  to the right of    6
5     1   to the left of    5
6     2   to the left of    1
7     2  to the right of   12
8     3  to the right of    7
9     3   to the left of    1
10    3               on    0
11    3  to the right of   14
12    4   to the left of   12
13    5  to the right of    1
14    6   to the left of    1
15    6   to the left of   15
16    6  to the right of   11
17    7   to the left of    3
18    7  to the right of   14
19    8  to the right of   16
20    9  to the right of   16
21   10               on    9
22   10  to the right of   16
23   11   to the left of    6
24   12   to the left of    1
25   12  to the right of    4
26   12   to the left of    2
27   12  to the right of   13
28   13   to the left of   12
29   14   to the left of    7
30   14   to the left of    3
31   15  to the right of    6
32   16   to the left of    9
33   16   to the left of    8
34   16   to the left of   10