a group of people gathered by a stone wall.
The group of people is all men
Not all groups of people consist of all men.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & Actor(e1,x4) & n_wall(x4) & of(x4,x5) & n_stone(x5) & Theme(e1,x3) & v_gather(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists p1 x1 x2.(n_group(x1) & all x3.(n_man(x3) -> (x1 = x3)) & of(x1,x2) & n_people(x2))