Two construction workers have a discussion while on the work site.
Two construction workers discuss the plans while on the work site.
The discussion does not necessarily have to be about the plans.
exists e1 x1 x2 x3 x4 x5.(n_site(x4) & of(x4,x5) & n_work(x5) & on(e1,x4) & r_while(e1) & Theme(e1,x3) & Actor(e1,x1) & v_have(e1) & n_discussion(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))
exists e1 x1 x2 x3 x4 x5.(n_site(x4) & of(x4,x5) & n_work(x5) & n_plan(x3) & on(e1,x4) & r_while(e1) & Theme(e1,x3) & Actor(e1,x1) & v_discuss(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))