Where do you think is the person walking?
The person is walking on the pavement.
    src        edge_attr  dst
0     1  to the right of    6
1     2  to the right of    3
2     3   to the left of    8
3     3   to the left of    2
4     4  to the right of   10
5     5  to the right of    9
6     6   to the left of    1
7     8  to the right of    3
8     8       walking on   10
9     8  to the right of   10
10    9   to the left of    5
11   10   to the left of    8
12   10   to the left of    4