A little boy wearing red and blue plaid is writing a letter.
A little boy writes a letter to Santa.
Not every little boy writing a letter is addressing the letter to Santa.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_write(e2) & n_letter(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_plaid(x3) & a_blue(s3) & Theme(s3,x3) & a_red(s2) & Theme(s2,x3) & (x1 = x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(ne_geo_santa(x3) & Theme(e1,x2) & Actor(e1,x1) & v_write(e1) & to(x2,x3) & n_letter(x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))