[Help-glpk] Help for definition

[Gulez]

I have a set like in the picture

 and I want to consider it in the constraint as

For this I have written as 

s.t. cons_N2 {j in M}: sum {k in K, i in N: (j,p) in J [i,k]} x [i,j,p] <= 1;
and in some other forms however I got dimensional error messages. Am I defining it wrong or sth else? 
Can anyone help me?

Or how can I define a set like those in the pictures.

Thanks a lot.

Taner

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