Adults and children stand outside of open barn.
No one has seen the barn in years.
The adults and children cannot be standing in front of open barn if no one has see the barn in years
exists e1 s1 x1 x2 x3 x4.(of(e1,x4) & n_barn(x4) & a_open(s1) & Theme(s1,x4) & r_outside(e1) & Actor(e1,x1) & v_stand(e1) & n_child(x3) & n_adult(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists x2.(n_barn(x2) & -exists e1 x1 x3.(in(e1,x3) & n_year(x3) & Theme(e1,x2) & Actor(e1,x1) & v_see(e1) & n_one(x1)))