A young baseball player watches the ball take flight just after contact.
He makes contact.
A baseball player watches the ball take flight just after contact doesn't imply he makes contact.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(n_ball(x4) & r_just(e2) & after(e2,x6) & n_contact(x6) & Theme(e2,x5) & Actor(e2,x1) & v_take(e2) & n_flight(x5) & Theme(e1,x4) & Actor(e1,x3) & v_watch(e1) & (x1 = x3) & n_player(x1) & of(x1,x2) & n_baseball(x2) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_contact(x2))