about dictionary

[Shi Mu]

d is a dictionary.
>>> d
{0: [[0, 1], [0, 2]], 1: [[0, 1], [1, 2], [1, 3]], 2: [[0, 2], [1, 2],
[2, 3]], 3: [[1, 3], [2, 3]]}

for the value under each key, if the possible connection is in the
dictionary, for example, under key 0. 1 and 2 were found to have a
pair in some other places so get [0,1,2]
hence, how to design a dictionary,
let dicTry=
{0: [[0, 1,2], 2: [[0, 1, 2], [1, 2,3]], 2: [[0, 1,2], [1, 2,3], 3: [1,2,3]}
Thanks a lot!