A young man in a red shirt playing tennis.
A young man is playing tennis.
A man in a red shirt playing tennis indicates he is playing tennis.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_tennis(x4) & (x2 = x3) & n_shirt(x2) & a_red(s2) & Theme(s2,x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_tennis(x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))