Who seems to be younger, the man or the boy?
The boy is younger than the man.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of   15
2     1  to the right of    6
3     1   to the left of   15
4     1   to the left of    3
..  ...              ...  ...
75   18   to the left of   13
76   18   to the left of    9
77   19               on    4
78   19   to the left of   11
79   19   to the left of   13

[80 rows x 3 columns]