Groups of people relax outside a building.
A man is using a bullhorn at a demonstration.
If there are groups of people, then it cannjot be one man.
exists e1 x1 x2 x3.(outside(e1,x3) & n_building(x3) & Actor(e1,x1) & v_relax(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & at(x2,x3) & n_demonstration(x3) & n_bullhorn(x2) & n_man(x1))