Five construction workers building the side of a gray building.
The teachers where on lunch break.
Construction workers are not teachers. Building something is different than being on a lunch break.
exists e1 s1 x1 x2 x3 x4.(n_side(x3) & Theme(e1,x3) & Actor(e1,x1) & v_build(e1) & of(x3,x4) & n_building(x4) & a_gray(s1) & Theme(s1,x4) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_5(x1))
exists x1 x2.(n_teacher(x1) & exists x3 x4 x5.(n_location(x3) & Time(x2,x1) & on(x2,x4) & n_break(x4) & of(x4,x5) & n_lunch(x5) & rel(x2,x3)) & n_event(x2))