Which color do you think this suitcase is?
The suitcase is gray.
    src        edge_attr  dst
0     0  to the right of   10
1     0  to the right of    4
2     1  to the right of    7
3     2  to the right of    9
4     3   to the left of    7
5     4               in   10
6     4  to the right of    5
7     4   to the left of    0
8     4         lying on   10
9     5   to the left of   10
10    5   to the left of    4
11    6  to the right of    7
12    7   to the left of    1
13    7  to the right of    3
14    7   to the left of    6
15    8  to the right of    9
16    9               on    5
17    9               on    8
18    9   to the left of    2
19    9   to the left of    8
20   10  to the right of    5
21   10               on    5
22   10   to the left of    0