Children practice their cooking skills.
Children practice cooking skills so they can make dinner for their parents.
Just because children practice cooking, does not imply that they will make dinner for their parents.
exists s1 s2 x1 x2 x3 x4.(n_skill(x1) & a_.(s2) & Theme(s2,x1) & of(x1,x4) & n_cooking(x4) & a_their(s1) & Theme(s1,x1) & of(x1,x3) & n_practice(x3) & (x1 = x2) & ne_nam_children(x2) & a_topic(x1))
(x)