Little Elephant and balloons

Does the probability of every subset would be same or it can vary due to same color of balloons??
example :

1

3 1

1 2

2 3

2 4

subsets are :
{1}{2}{2} {1,2} {1,2} {2,2} {1,2,2}
so the probability of each subset will be same or different?

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