Several men making a net on a beach.
The men are cleaning their guns before battle.
Making nets can't happen while cleaning guns. You can only do one thing at a time.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_beach(x4) & Theme(e1,x3) & Actor(e1,x2) & v_make(e1) & n_net(x3) & (x1 = x2) & n_man(x1) & a_several(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_gun(x2) & of(x2,x1) & n_thing(x1) & n_man(x1) & before(e1,x3) & n_battle(x3) & Theme(e1,x2) & Actor(e1,x1) & v_clean(e1))