Find the most general unifier of the following expression
p(X,X)
p(Y,f(Y))
connected(f(W ,X), W)
connected(f(Y , Z), Z)
likes(X,jane,W)
likes(tom,Y,Z)
p(X,X)
p(Y,f(Y))
connected(f(W ,X), W)
connected(f(Y , Z), Z)
likes(X,jane,W)
likes(tom,Y,Z)