A man is riding a bicycle through a city.
A man is in a city
Not all the people that are in city are riding
exists e1 x1 x2 x3.(through(e1,x3) & n_city(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x2) & n_man(x1))
exists p1 x1.(exists x2.(in(x1,x2) & n_city(x2)) & n_man(x1))