A man operates a drill while working on the window of a building.
a man gluing wood
A man can only operate a drill or glue wood. Not both at the same time.
exists e1 e2 x1 x2 x3 x4.(n_window(x3) & while(e1,e2) & on(e2,x3) & of(x3,x4) & n_building(x4) & Actor(e2,x1) & v_work(e2) & Theme(e1,x2) & Actor(e1,x1) & v_operate(e1) & n_drill(x2) & n_man(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_glue(e1) & n_wood(x3) & (x1 = x2) & n_man(x1))