Which kind of device is to the left of the refrigerator?
The device is a cell phone.
    src        edge_attr  dst
0     0   to the left of    3
1     2   to the left of   13
2     3  to the right of    4
3     3  to the right of    0
4     3  to the right of   10
5     3  to the right of   12
6     3  to the right of   11
7     4   to the left of    3
8     4   to the left of    9
9     5  to the right of    7
10    5  to the right of   12
11    6   to the left of   13
12    7   to the left of    5
13    9  to the right of    4
14    9  to the right of   12
15   10   to the left of    3
16   11   to the left of    3
17   12          holding    2
18   12   to the left of    9
19   12   to the left of    5
20   12   to the left of    3
21   13  to the right of    6
22   13  to the right of    2