Men sitting in chairs in shallow water fishing.
Group of men scuba diving.
Men cannot be scuba diving while they are fishing.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x4) & n_fishing(x4) & of(x4,x5) & n_water(x5) & a_shallow(s1) & Theme(s1,x4) & in(e1,x3) & n_chair(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(ne_org_group(x1) & Theme(e1,x3) & Actor(e1,x1) & v_scuba(e1) & n_diving(x3) & of(x1,x2) & n_man(x2))