A person is riding a bike in a tunnel.
person going to concert
Just because a person is riding a bike doesn't mean he is going to a concert
exists e1 x1 x2 x3.(in(e1,x3) & n_tunnel(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_person(x1))
exists e1 x1 x2 x3.(a_topic(x1) & to(e1,x3) & n_concert(x3) & Actor(e1,x2) & v_go(e1) & (x1 = x2) & n_person(x1))