Are there any napkins to the left of the cup the drink is to the left of?
No, the napkin is to the right of the cup.
     src       edge_attr  dst
0      0      sitting on    6
1      0              in    7
2      0         wearing    4
3      0  to the left of   14
4      0  to the left of   13
..   ...             ...  ...
124   30  to the left of   12
125   31  to the left of   17
126   31  to the left of   18
127   31  to the left of   19
128   31  to the left of   29

[129 rows x 3 columns]