Who is holding the cell phones that look black and gray?
The woman is holding the cellphones.
    src        edge_attr  dst
0     0  to the right of    5
1     1   to the left of    9
2     1   to the left of    5
3     1   to the left of    7
4     3          wearing    1
5     3      in front of    9
6     3      in front of    8
7     3          holding    4
8     3   to the left of    5
9     3       looking at    4
10    3   to the left of    9
11    3   to the left of    7
12    4   to the left of    7
13    5   to the left of    0
14    5  to the right of    3
15    5  to the right of    1
16    6   to the left of    7
17    7          wearing    0
18    7          wearing    2
19    7  to the right of    3
20    7  to the right of    4
21    7  to the right of    6
22    7       looking at    4
23    7  to the right of    1
24    7      in front of    8
25    8           behind    3
26    8           behind    7
27    9           behind    3
28    9  to the right of    1
29    9  to the right of    3