A little boy is looking at a rock with a magnifying glass.
The boy is a geologist
You can not infer he is a geologist.
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 p1 x1.(n_boy(x1) & exists x2.((x1 = x2) & n_geologist(x2)))