Does the shirt have a different color than the heater?
No, both the shirt and the heater are white.
    src        edge_attr  dst
0     0       sitting on   11
1     0   to the left of   15
2     0   to the left of    1
3     1   to the left of    7
4     1  to the right of    9
5     1   to the left of   16
6     1   to the left of   14
7     1  to the right of    0
8     2  to the right of    8
9     2   to the left of   10
10    2  to the right of   12
11    2  to the right of   17
12    2  to the right of    6
13    3   to the left of    6
14    4   to the left of    5
15    5               on   12
16    5  to the right of   13
17    5  to the right of    4
18    5   to the left of    8
19    6  to the right of    3
20    6   to the left of    2
21    7  to the right of    1
22    7  to the right of   15
23    7  to the right of   14
24    8   to the left of    2
25    8  to the right of   13
26    8  to the right of    5
27    9   to the left of    1
28    9   to the left of   15
29   10       sitting on   11
30   10               on   16
31   10  to the right of    2
32   10  to the right of   12
33   12   to the left of   10
34   12   to the left of    2
35   13   to the left of    5
36   13   to the left of    8
37   13   to the left of   17
38   14   to the left of    7
39   14  to the right of   15
40   14  to the right of    1
41   15  to the right of    9
42   15   to the left of   14
43   15  to the right of    0
44   15   to the left of    7
45   15   to the left of   16
46   15          sewn on    1
47   16  to the right of    1
48   16  to the right of   15
49   17  to the right of   13
50   17   to the left of    2