What color is the clock by the building?
The clock is white.
    src        edge_attr  dst
0     0          next to   14
1     0             near   14
2     0  to the right of   11
3     0  to the right of   15
4     0   to the left of    6
5     0   to the left of    3
6     0   to the left of    4
7     0   to the left of   10
8     1   to the left of    2
9     2  to the right of    1
10    3  to the right of    0
11    4  to the right of    0
12    5               by   14
13    5               on    0
14    6  to the right of   10
15    6  to the right of    0
16    7               by   14
17   10  to the right of   12
18   10  to the right of    0
19   10   to the left of    6
20   11   to the left of    0
21   11               in    9
22   12   to the left of   10
23   14             near    0
24   15   to the left of    0