People are gathered at an event in a sandy area.
A group of children on the beach.
There is no way to know if any of the people are children, or if they are at a beach.
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_area(x3) & a_sandy(s1) & Theme(s1,x3) & at(e1,x2) & n_event(x2) & Theme(e1,x1) & v_gather(e1) & n_people(x1))
exists x1 x2 x3.(n_beach(x3) & a_topic(x1) & of(x1,x2) & on(x2,x3) & n_child(x2) & n_group(x1))