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