Is the black cable plugged into a phone?
No, the cable is plugged into the computer.
    src        edge_attr  dst
0     0  to the right of    3
1     0   to the left of    8
2     1          full of    0
3     1   to the left of    8
4     1  to the right of    3
5     2               in    1
6     2   to the left of    8
7     3   to the left of    8
8     3   to the left of    1
9     3   to the left of    0
10    3               on    4
11    3   to the left of   11
12    3   to the left of    5
13    3   to the left of    4
14    3      in front of    9
15    4  to the right of    3
16    4  to the right of    6
17    5     plugged into    3
18    5  to the right of    6
19    5  to the right of    3
20    6   to the left of    5
21    6   to the left of    4
22    8  to the right of    0
23    8  to the right of    1
24    8  to the right of    3
25    8  to the right of    9
26    8  to the right of   10
27    8  to the right of    2
28    8  to the right of   11
29    9   to the left of    8
30    9           behind    3
31   10   to the left of   11
32   10               in    1
33   10   to the left of    8
34   11  to the right of    3
35   11               in    1
36   11   to the left of    8
37   11  to the right of   10