Bicyclists waiting at an intersection.
A person on a bike is waiting while the light is green.
A person is waiting while the light is green they doesn't need to be on bike
exists e1 x1 x2 x3.(a_topic(x1) & at(e1,x3) & n_intersection(x3) & Actor(e1,x2) & v_wait(e1) & (x1 = x2) & n_bicyclist(x1))
exists e1 p1 x1 x2 x3.(n_light(x3) & exists s1.(Theme(s1,x3) & a_green(s1)) & while(e1,p1) & Actor(e1,x1) & v_wait(e1) & on(x1,x2) & n_bike(x2) & n_person(x1))