Who is wearing an earring?
The passengers are wearing an earring.
     src        edge_attr  dst
0      0  to the right of   18
1      0  to the right of   11
2      0  to the right of    6
3      0  to the right of   14
4      0  to the right of   12
..   ...              ...  ...
158   26  to the right of    1
159   26  to the right of    2
160   26  to the right of   22
161   26  to the right of   15
162   26  to the right of   11

[163 rows x 3 columns]