Boy building a structure using items found in a meadow.
A boy is reading.
One cannot be reading while building at the same time.
exists e1 e3 e2 x1 x2 x3 x4 x5.(ne_nam_boy(x1) & for(e1,e3) & Theme(e3,x3) & Actor(e3,x1) & v_use(e3) & in(e2,x5) & n_meadow(x5) & Theme(e2,x4) & v_find(e2) & (x3 = x4) & n_item(x3) & Theme(e1,x2) & Actor(e1,x1) & v_build(e1) & n_structure(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & n_thing(x2) & n_boy(x1))