What is the height of the grass the mat is on?
The grass is short.
    src        edge_attr  dst
0     0  to the right of    8
1     0  to the right of   10
2     0   to the left of   13
3     1   to the left of   12
4     1   to the left of    5
5     1  to the right of   17
6     1   to the left of   19
7     2  to the right of   16
8     2  to the right of    7
9     3   to the left of   15
10    3   to the left of   11
11    4  to the right of    5
12    4  to the right of   19
13    5  to the right of   11
14    5   to the left of    4
15    5   to the left of   12
16    5   to the left of   19
17    5  to the right of    1
18    7  to the right of   16
19    7   to the left of    2
20    8   to the left of    0
21    8  to the right of   10
22    9  to the right of   11
23   10   to the left of    0
24   10   to the left of    8
25   10   to the left of   17
26   11   to the left of    9
27   11   to the left of   19
28   11  to the right of   15
29   11   to the left of   12
30   11   to the left of    5
31   11  to the right of    3
32   12  to the right of    1
33   12  to the right of    5
34   12  to the right of   11
35   13  to the right of    0
36   13  to the right of   17
37   14               on   13
38   14  to the right of   17
39   14   to the left of   19
40   15   to the left of   11
41   15  to the right of    3
42   16               on   10
43   16   to the left of    7
44   16   to the left of    2
45   17  to the right of   10
46   17   to the left of    1
47   17   to the left of   14
48   17   to the left of   13
49   17          wearing   18
50   19   to the left of    4
51   19  to the right of   11
52   19  to the right of   14
53   19  to the right of    5
54   19  to the right of    1
55   19               on    5