A boy chasing a baseball.
The boy is working in a baseball factory.
The boy cannot chase a baseball and work in a baseball factory simultaneously
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_chase(e1) & n_baseball(x3) & (x1 = x2) & n_boy(x1))
exists e1 x1 x2 x3.(n_boy(x1) & in(e1,x2) & n_factory(x2) & of(x2,x3) & n_baseball(x3) & Actor(e1,x1) & v_work(e1))