What do both the man apron and the tee shirt have in common?
The color, both the apron and the tee shirt are blue.
    src        edge_attr  dst
0     1   to the left of    6
1     1   to the left of   14
2     2  to the right of    7
3     4   to the left of   13
4     5   to the left of   17
5     5   to the left of    8
6     5   to the left of    6
7     6  to the right of    1
8     6  to the right of    5
9     6  to the right of   10
10    7   to the left of    2
11    7  to the right of   11
12    8  to the right of    5
13   10   to the left of    6
14   11   to the left of    7
15   13  to the right of    4
16   14  to the right of    1
17   15               on    9
18   16          wearing   15
19   16          holding    6
20   16          wearing   12
21   17  to the right of    5