Numerous bicyclists riding across a bridge.
Bicyclist ride across a bridge.
bicyclists riding across can also be said as Bicyclist ride across
exists e1 s1 x1 x2 x3.(a_topic(x1) & across(e1,x3) & n_bridge(x3) & Actor(e1,x2) & v_ride(e1) & (x1 = x2) & n_bicyclist(x1) & a_numerous(s1) & Theme(s1,x1))
exists x1 x2 x3.(a_topic(x1) & across(x1,x3) & n_bridge(x3) & n_ride(x1) & of(x1,x2) & n_bicyclist(x2))