In the field, an elderly man is touching a model airplane.
A young boy is playing with a toy helicopter in the yard
An elderly man and a young boy are not the same person, a toy helicopter is different from a model airplane.
exists e1 s1 x1 x2 x3 x4.(n_field(x4) & in(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_touch(e1) & n_airplane(x2) & of(x2,x3) & n_model(x3) & n_man(x1) & a_elderly(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3 x4.(n_yard(x4) & with(e1,x2) & in(x2,x4) & n_helicopter(x2) & of(x2,x3) & n_toy(x3) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))