What is the color of the seat belt?
The seat belt is brown.
    src        edge_attr  dst
0     1  to the right of    8
1     3         covering   10
2     3  to the right of    7
3     3  to the right of    8
4     3               on    9
5     5  to the right of    8
6     6               on    9
7     7   to the left of    3
8     7  to the right of    8
9     8   to the left of    5
10    8   to the left of    1
11    8   to the left of    3
12    8   to the left of   10
13    8   to the left of    7
14    8   to the left of   11
15    9               of    2
16   10       covered by    3
17   10  to the right of    8
18   11               on    9
19   11  to the right of    8