Is the counter made of steel?
Yes, the counter is made of steel.
    src        edge_attr  dst
0     0   to the left of    2
1     2  to the right of   16
2     2  to the right of    0
3     2  to the right of   11
4     2   to the left of    4
5     4  to the right of    2
6     4  to the right of    9
7     4  to the right of   11
8     5   to the left of   15
9     5  to the right of    8
10    5   to the left of   14
11    7  to the right of   11
12    7               on    1
13    8   to the left of    5
14    9               on   11
15    9   to the left of    4
16   10  to the right of   17
17   11   to the left of    2
18   11   to the left of    4
19   11   to the left of    7
20   11   to the left of   13
21   13  to the right of   11
22   13  to the right of   14
23   14   to the left of   13
24   14               on   11
25   14  to the right of    5
26   14   to the left of   15
27   15  to the right of    5
28   15  to the right of   14
29   16   to the left of    2
30   17   to the left of   10