Many people ride their bikes down a bike path in a city.
A group of people running.
People cannot ride their bikes and be running simultaneously.
exists e1 x1 x2 x3 x4.(in(e1,x4) & n_city(x4) & down(e1,x3) & n_path(x3) & of(x3,x2) & n_bike(x2) & n_bike(x2) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & of(x2,x1) & n_thing(x1) & n_people(x1) & n_quantity(x1))
exists e1 x1 x2 x3.(a_topic(x1) & of(x1,x2) & Actor(e1,x3) & v_run(e1) & (x2 = x3) & n_people(x2) & n_group(x1))