On which side are the passengers?
The passengers are on the right of the image.
    src        edge_attr  dst
0     1   to the left of    7
1     1  to the right of    6
2     2  to the right of    3
3     2   to the left of    8
4     3   to the left of    5
5     3   to the left of    8
6     3   to the left of    2
7     4  to the right of    6
8     4   to the left of    7
9     5   to the left of    9
10    5  to the right of    3
11    6   to the left of    1
12    6   to the left of    7
13    6   to the left of    4
14    7  to the right of    4
15    7  to the right of    1
16    7  to the right of    6
17    8  to the right of    2
18    8  to the right of    3
19    8   to the left of   10
20    9  to the right of    5
21    9   to the left of   10
22   10  to the right of    9
23   10  to the right of    8