A large crane lifting an object.
Cranes can lift large objects.
A large crane is lifting an object because it can lift large objects.
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_lift(e1) & n_object(x3) & (x1 = x2) & n_crane(x1) & a_large(s1) & Theme(s1,x1))
exists e1 p1 x1.(ne_nam_cranes(x1) & exists e2 s1 x2.(Theme(e2,x2) & Actor(e2,x1) & v_lift(e2) & n_object(x2) & a_large(s1) & Theme(s1,x2)) & Topic(e1,p1) & Actor(e1,x1) & v_can(e1))