Develop ucat(L1,L2,L3) in Prolog.
The predicate is satisfied if the list L3 contains all elements of the list L1 and those elements from the list L2 that are not in L1.
For example, ?-ucat([a,b,c],[d,c,e,a],Y). Y=[a,b,c,d,e] Give two different versions of responses. Please separate the responses with 6 asterisk symbols: ******.
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