Construction workers are working on a construction project.
The men are playing football.
one group is working while the other is playing
exists e1 x1 x2 x3 x4.(on(e1,x3) & n_project(x3) & of(x3,x4) & n_construction(x4) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_football(x2))