Two young boys wearing pirate hats are crouching down.
Two boys are crouching.
Young boys are boys and are crouching in both examples.
exists e1 e2 s1 s2 s3 x1 x2 x3.(a_down(s3) & Manner(e2,s3) & Actor(e2,x1) & v_crouch(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_hat(x3) & a_pirate(s2) & Theme(s2,x3) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_crouch(e1) & n_boy(x1) & card_eq_2(x1))