A man with a beer is looking at his beer.
At a bar, a man looks at his beer
Just because a man is looking at his beer doesn't imply at a bar.
exists e1 x1 x2.(at(e1,x2) & n_beer(x2) & n_beer(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_look(e1) & with(x1,x2) & n_man(x1))
exists e1 x1 x2 x3.(at(e1,x3) & n_bar(x3) & at(e1,x2) & n_beer(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_look(e1) & n_man(x1))