Which kind of device is to the left of the curtain?
The device is a cell phone.
    src        edge_attr  dst
0     0  to the right of    8
1     0  to the right of    1
2     0   to the left of    3
3     0  to the right of   12
4     1               on   12
5     1   to the left of    0
6     1       hanging on   12
7     1   to the left of    8
8     1   to the left of    4
9     1   to the left of    5
10    1   to the left of    2
11    1   to the left of    9
12    2  to the right of    1
13    2  to the right of   12
14    2  to the right of   10
15    3  to the right of   11
16    3  to the right of    0
17    3  to the right of    7
18    4  to the right of    1
19    4  to the right of   12
20    5  to the right of    1
21    5          holding    7
22    5       looking at    7
23    5            using    7
24    5  to the right of   12
25    7  to the right of   12
26    7   to the left of    3
27    7  to the right of    8
28    8  to the right of    9
29    8  to the right of   12
30    8   to the left of    0
31    8   to the left of    7
32    8  to the right of    1
33    9  to the right of    1
34    9  to the right of   12
35    9   to the left of    8
36   10               on   12
37   10   to the left of    2
38   11  to the right of   12
39   11   to the left of    3
40   11               on   12
41   12   to the left of   11
42   12   to the left of    0
43   12   to the left of    9
44   12   to the left of    4
45   12   to the left of    7
46   12   to the left of    5
47   12   to the left of    8
48   12   to the left of    2