Asian workers in a warehouse are assembling products.
Asian workers were making toys
The Asian workers might not be making toys.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_assemble(e1) & n_product(x3) & in(x1,x2) & n_warehouse(x2) & n_worker(x1) & a_asian(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_toy(x2) & n_worker(x1) & a_asian(s1) & Theme(s1,x1))