Which kind of material is the bottle to the left of the bronwy made of?
The bottle is made of glass.
    src        edge_attr  dst
0     0  to the right of   13
1     0  to the right of   12
2     0  to the right of    2
3     0  to the right of    1
4     0  to the right of   11
..  ...              ...  ...
73   15   to the left of    1
74   15   to the left of   13
75   16  to the right of    2
76   16  to the right of   12
77   16  to the right of    1

[78 rows x 3 columns]