Are there silver phones or computer mice?
Yes, there is a silver phone.
    src        edge_attr  dst
0     0   to the left of    2
1     1  to the right of    4
2     1  to the right of    8
3     1   to the left of    6
4     2  to the right of    4
5     2  to the right of    0
6     2  to the right of    8
7     4   to the left of    2
8     4   to the left of    1
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10    6  to the right of    7
11    7   to the left of    6
12    8   to the left of    1
13    8   to the left of    2