A runner is about to run underneath this bridge in the fall.
A runner is running.
If the runner is about to run underneath something, odds are they are already running
exists p1 s1 x1 x3 x4.(n_fall(x4) & n_bridge(x3) & Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e1 x2.(in(e1,x4) & Time(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_underneath(x2)) & n_runner(x1))
exists e1 x1.(Actor(e1,x1) & v_run(e1) & n_runner(x1))