Does the luggage cart look empty?
Yes, the luggage cart is empty.
    src        edge_attr  dst
0     0  to the right of    4
1     1               at    5
2     1          next to    8
3     1             near    8
4     2  to the right of    4
5     2   to the left of   10
6     2               on    3
7     3   to the left of   10
8     3  to the right of    4
9     4               at    5
10    4   to the left of   10
11    4   to the left of    2
12    4   to the left of    0
13    4   to the left of    3
14    6               of    5
15    6   to the left of   10
16    7               of    5
17    8             near    1
18   10  to the right of    6
19   10               in    9
20   10  to the right of    2
21   10  to the right of    4
22   10  to the right of    3
23   11               of   10
24   12               of   10