What type of material is that coffee cup made of?
The coffee cup is made of glass.
    src        edge_attr  dst
0     1             near    4
1     1             near    3
2     1   to the left of    2
3     2  to the right of    5
4     2  to the right of    4
5     2  to the right of    1
6     3          contain    0
7     3          next to    1
8     4   to the left of    2
9     4          contain    5
10    4          next to    1
11    5   to the left of    2