How clean is the sidewalk the person is on?
The sidewalk is clean.
    src        edge_attr  dst
0     1  to the right of   11
1     1  to the right of   10
2     1  to the right of   12
3     1  to the right of    9
4     2  to the right of   12
5     2   to the left of    6
6     5             near   10
7     6  to the right of    2
8     6  to the right of   12
9     6  to the right of    9
10    7            above    9
11    8  to the right of   10
12    8  to the right of   12
13    9   to the left of    1
14    9   to the left of    6
15   10             near   12
16   10   to the left of    8
17   10            below   11
18   10             near    5
19   10   to the left of    1
20   11   to the left of    1
21   11               on   10
22   12   to the left of    6
23   12   to the left of    2
24   12          next to   10
25   12   to the left of    1
26   12   to the left of    8