A man playing baseball on a sunny day.
the man is an athlete
A man playing baseball doesn't necessary imply the man is an athlete.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_day(x4) & a_sunny(s1) & Theme(s1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_baseball(x3) & (x1 = x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_athlete(x2)))