How large is the puddle?
The puddle is large.
    src        edge_attr  dst
0     0  to the right of   12
1     0  to the right of   15
2     0   to the left of   17
3     5  to the right of   15
4     6  to the right of   11
5     6  to the right of   13
6    11   to the left of   13
7    11   to the left of    6
8    12   to the left of    0
9    12  to the right of   15
10   12   to the left of   17
11   13   to the left of    6
12   13  to the right of   11
13   13               in    3
14   14               on   16
15   14           beside   13
16   15   to the left of   17
17   15   to the left of   12
18   15   to the left of    0
19   15   to the left of    5
20   17  to the right of   12
21   17  to the right of    0
22   17  to the right of   15