Do you see any silver laptops or DVD players?
No, there is a laptop but it is black.
   src        edge_attr  dst
0    0  to the right of    7
1    0  to the right of    8
2    1   to the left of    9
3    4  to the right of    7
4    4  to the right of    8
5    7   to the left of    4
6    7   to the left of    0
7    8   to the left of    4
8    8   to the left of    0
9    9  to the right of    1