Does the necklace have square shape?
Yes, the necklace is square.
    src        edge_attr  dst
0     0       covered by    3
1     0   to the left of   28
2     0   to the left of    2
3     1       covered by    3
4     1   to the left of   24
5     1   to the left of   22
6     2   to the left of   24
7     2  to the right of    0
8     2       covered by    3
9     3         covering    1
10    3         covering    2
11    3         covering    0
12    3  to the right of   10
13    4   to the left of    5
14    4   to the left of   11
15    5   to the left of   20
16    5  to the right of   11
17    5  to the right of    4
18    6         covering    8
19    8       covered by    6
20    9   to the left of   12
21    9   to the left of   18
22   10   to the left of    3
23   10  to the right of   21
24   11  to the right of    4
25   11   to the left of    5
26   12  to the right of    9
27   12  to the right of   22
28   14   to the left of   27
29   14   to the left of   26
30   18  to the right of   22
31   18  to the right of    9
32   19  to the right of   22
33   20  to the right of    5
34   21   to the left of   10
35   21        on top of   24
36   22   to the left of   19
37   22   to the left of   18
38   22   to the left of   12
39   22  to the right of   26
40   22  to the right of    1
41   22               in   28
42   22  to the right of   27
43   22          wearing   29
44   24  to the right of    2
45   24  to the right of    1
46   25   to the left of   27
47   25   to the left of   26
48   26  to the right of   14
49   26   to the left of   29
50   26   to the left of   22
51   26  to the right of   25
52   27   to the left of   22
53   27  to the right of   14
54   27  to the right of   25
55   27   to the left of   29
56   28  to the right of    0
57   29  to the right of   27
58   29  to the right of   26