People are gathered at an event in a sandy area.
People at an event outside.
The people outside are gathered for an event.
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.(a_topic(x1) & at(x1,x2) & n_outside(x2) & of(x2,x3) & n_event(x3) & n_people(x1))