Lot of men are sitting under a shaded tree.
A lot of men are sitting under a maple tree
There is no way to know what type of shaded tree a lot of men are sitting under. They could be standing under a pine or oak tree and not necessarily a maple one.
exists e1 s1 x1 x2 x3.(under(e1,x3) & n_tree(x3) & a_shaded(s1) & Theme(s1,x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_man(x2) & n_lot(x1))
exists e1 x1 x2 x3 x4.(under(e1,x3) & n_tree(x3) & of(x3,x4) & n_maple(x4) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_man(x2) & n_lot(x1))