What is covered in sauce?
The noodles are covered in sauce.
    src          edge_attr  dst
0     0    to the right of    1
1     0     to the left of    2
2     1         covered in    0
3     1     to the left of    0
4     1     to the left of    7
5     2                 on   12
6     2                 on    6
7     2    to the right of    0
8     2    to the right of    7
9     2    lying on top of   12
10    2     to the left of   10
11    2    to the right of    4
12    4                 on   12
13    4                 on    6
14    4    lying on top of   12
15    4    to the right of    7
16    4     to the left of    2
17    5  sitting on top of    3
18    6    lying on top of    5
19    7               with   10
20    7               with   11
21    7               with    8
22    7               with    9
23    7     to the left of    2
24    7    to the right of    1
25    7     to the left of    4
26    8                 on    7
27    8     to the left of    9
28    8    to the right of   11
29    9    to the right of   11
30    9      lying next to    6
31    9    to the right of    8
32    9                 on    7
33   10    to the right of    2
34   10                 on    7
35   11     to the left of    8
36   11     to the left of    9
37   11      lying next to    6
38   11                 on    7
39   12    lying on top of    5