Are there either faucets or bulbs?
No, there are no bulbs or faucets.
     src        edge_attr  dst
0      0               on   15
1      0  to the right of    1
2      0   to the left of   14
3      0  to the right of   13
4      1   to the left of    0
..   ...              ...  ...
97    21  to the right of    4
98    21  to the right of   20
99    21   to the left of   19
100   22  to the right of   13
101   22   to the left of   14

[102 rows x 3 columns]