Is the black device in the top part?
Yes, the cell phone is in the top of the image.
    src        edge_attr  dst
0     0  to the right of    8
1     0   to the left of    1
2     1  to the right of    8
3     1  to the right of    4
4     1  to the right of    0
5     2   to the left of    3
6     3  to the right of    2
7     3  to the right of    7
8     4   to the left of    1
9     5               of    3
10    5   to the left of    6
11    6  to the right of    5
12    6               of    3
13    7   to the left of    3
14    8   to the left of    1
15    8   to the left of    0