Boys playing soccer in a field.
Boys playing volleyball at the beach
The boys cannot play soccer in a field and volleyball at the beach simultaneously.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_field(x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_soccer(x3) & (x1 = x2) & n_boy(x1))
exists e1 x1 x2 x3 x4.(n_beach(x4) & a_topic(x1) & at(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_volleyball(x3) & (x1 = x2) & n_boy(x1))