A man swinging at a tennis ball with a green sign that read findersport.
A man hits a tennis ball with a large object.
A large object does not have to be a green sign. It does not have to be any kind of sign. And it does not have to have any words on it. A large object could literally just be any object that is large in stature.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & at(e1,x3) & with(x3,x5) & Theme(e2,x7) & Actor(e2,x6) & v_read(e2) & n_findersport(x7) & (x5 = x6) & n_sign(x5) & a_green(s1) & Theme(s1,x5) & n_ball(x3) & of(x3,x4) & n_tennis(x4) & Actor(e1,x2) & v_swing(e1) & (x1 = x2) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(with(e1,x4) & n_object(x4) & a_large(s1) & Theme(s1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_hit(e1) & n_ball(x2) & of(x2,x3) & n_tennis(x3) & n_man(x1))