What is the device to the right of the lady that is not sad?
The device is a computer.
    src        edge_attr  dst
0     0   to the left of    4
1     1  to the right of    6
2     1  to the right of    3
3     1  to the right of    5
4     1  to the right of    9
5     1  to the right of    2
6     2       sitting on    5
7     2   to the left of   11
8     2   to the left of    1
9     2   to the left of   10
10    3  to the right of    6
11    3   to the left of   11
12    3   to the left of    1
13    3  to the right of    9
14    3   to the left of   10
15    4   to the left of    7
16    4  to the right of    0
17    5   to the left of    1
18    5   to the left of   10
19    5   to the left of   11
20    6   to the left of    3
21    6   to the left of    7
22    6   to the left of    1
23    7  to the right of    9
24    7  to the right of    4
25    7  to the right of    6
26    9   to the left of    3
27    9   to the left of    1
28    9          wearing    6
29    9   to the left of    7
30   10  to the right of    2
31   10  to the right of    3
32   10  to the right of    5
33   11  to the right of    5
34   11               on    1
35   11  to the right of    2
36   11  to the right of    3