A person is riding an orange ATV in a large empty field.
The person on the orange ATV in the field is wearing a hat.
A person riding an ATV does not imply wearing a hat.
exists e1 s1 s2 x1 x2 x3 x4.(in(e1,x4) & n_field(x4) & a_empty(s2) & Theme(s2,x4) & a_large(s1) & Theme(s1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_atv(x2) & of(x2,x3) & n_orange(x3) & n_person(x1))
exists e1 x1 x2 x3 x4 x5.(n_field(x4) & ne_nam_atv(x2) & of(x2,x3) & n_orange(x3) & n_person(x1) & Theme(e1,x5) & Actor(e1,x1) & v_wear(e1) & n_hat(x5) & in(x1,x4) & on(x1,x2))