Three boys jumping off of a platform.
The platform is tall
Just because boy are jumping off of a platform doesn't mean it is tall.
exists e1 x1 x2 x3.(a_topic(x1) & of(e1,x3) & n_platform(x3) & r_off(e1) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_boy(x1) & card_eq_3(x1))
exists s1 x1.(n_platform(x1) & Theme(s1,x1) & a_tall(s1))