Is the man lying?
Yes, the man is lying.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of   10
2     1  to the right of    6
3     1  to the right of    5
4     1  to the right of   13
5     1   to the left of   11
6     1   to the left of   10
7     3   to the left of   13
8     4   to the left of    0
9     5  to the right of   13
10    5   to the left of    1
11    6   to the left of    1
12   10   to the left of    0
13   10  to the right of    1
14   11  to the right of    1
15   13   to the left of    1
16   13  to the right of    3
17   13   to the left of    5
18   13  to the right of   14
19   14   to the left of   13