Teens are riding their bikes through the park near the fountains
The teens are walking through the park.
The teens can not be riding their bikes while also walking through the park.
exists e1 x1 x2 x3 x4.(n_fountain(x4) & n_park(x3) & through(e1,x3) & near(x3,x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & of(x2,x1) & n_thing(x1) & n_teens(x1))
exists e1 x1 x2.(n_park(x2) & n_teens(x1) & through(e1,x2) & Actor(e1,x1) & v_walk(e1))