A little boy is looking at a rock with a magnifying glass.
The boy is looking at his sister
He's looking either at a rock or a sister.
exists e1 s1 s2 x1 x2 x3.(at(e1,x2) & with(x2,x3) & n_glass(x3) & a_magnifying(s2) & Theme(s2,x3) & n_rock(x2) & Actor(e1,x1) & v_look(e1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_sister(x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & at(e1,x2) & Actor(e1,x1) & v_look(e1))