Which vehicle is not closed?
The vehicle is a car.
    src        edge_attr  dst
0     3   to the left of   12
1     3   to the left of   16
2     4  to the right of   13
3     5  to the right of   13
4     6               in    7
5     7            above    8
6    10  to the right of   13
7    11  to the right of   13
8    12  to the right of    3
9    13   to the left of   11
10   13   to the left of    4
11   13   to the left of   10
12   13   to the left of    5
13   14               in    7
14   16  to the right of    3