Are there either any crowns or hammers?
No, there are no hammers or crowns.
     src        edge_attr  dst
0      0   to the left of   21
1      0   to the left of   27
2      0   to the left of   26
3      1  to the right of    4
4      1  to the right of    9
..   ...              ...  ...
233   35  to the right of   19
234   35  to the right of    4
235   35   to the left of   31
236   36  to the right of    2
237   36  to the right of   28

[238 rows x 3 columns]