Is there any truck that is yellow?
Yes, there is a truck that is yellow.
    src        edge_attr  dst
0     0   to the left of    5
1     1   to the left of    2
2     2  to the right of    1
3     2  to the right of   10
4     2  to the right of    8
5     2  to the right of    3
6     3   to the left of    2
7     5  to the right of    0
8     6  to the right of    7
9     6  to the right of   11
10    7   to the left of    6
11    7  to the right of   11
12    8   to the left of    2
13    8   to the left of    9
14    9  to the right of    8
15   10   to the left of    2
16   11   to the left of    7
17   11   to the left of    6
18   12     connected to    7