A bunch of people outdoors and some of them are wearing hard hats.
There are people working inside a warehouse.
One cannot  e working inside a warehouse while staying  outdoors
exists e1 s1 x1 x2 x3 x4 x5 x6.(Theme(e1,x6) & Actor(e1,x1) & v_wear(e1) & n_hat(x6) & a_hard(s1) & Theme(s1,x6) & subset_of(x5,x1) & of(x5,x2) & n_thing(x2) & n_thing(x5) & subset_of(x2,x1) & Time(x2,x4) & n_outdoors(x4) & of(x2,x3) & n_people(x3) & n_bunch(x2))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & inside(e1,x4) & n_warehouse(x4) & Actor(e1,x3) & v_work(e1) & (x2 = x3) & n_people(x2))