Where is the phone?
The phone is on the dock.
    src        edge_attr  dst
0     0  to the right of    3
1     1   to the left of   11
2     1               on    4
3     2  to the right of    7
4     3   to the left of    0
5     4  to the right of    7
6     5  to the right of    7
7     6   to the left of   13
8     7   to the left of    2
9     7   to the left of   10
10    7   to the left of    5
11    7   to the left of    4
12   10  to the right of    7
13   11  to the right of   12
14   11  to the right of    1
15   12   to the left of   11
16   13  to the right of    6