young boys at soccer practice
The men play tennis.
Sport they are playing is either soccer or tennis.
exists s1 x1 x2 x3.(a_topic(x1) & at(x1,x2) & n_practice(x2) & of(x2,x3) & n_soccer(x3) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_tennis(x2))