Prolog SWI - how to reverse the order of elements in a list?

Question

Prolog

Prolog SWI. There is a list L1, the elements of which are lists L, it is necessary to reverse the order of the elements in the lists L, and then replace the order of the lists L in the list L1 with the reverse.

Answer 1

If I understand correctly, then:

p(L, R):-
  maplist(reverse, L, RL),
  reverse(RL, R).

Call like this:

?- p(, X).
X = .

?- p(, X).
X = .                                                                                 
                                                                                                                         
?-

Answer 2

Thanks, but I already found the solution