A boy swings in the air.
The boy is 6ft tall.
The fact that a boy is swinging in the air does nothing to indicate his height, e.g. that he is 6ft tall.
exists x1 x2 x3.(n_air(x3) & a_topic(x1) & in(x1,x3) & n_swing(x1) & of(x1,x2) & n_boy(x2))
exists s1 x1.(n_boy(x1) & r_6ft(s1) & Theme(s1,x1) & a_tall(s1))