A man surveys a booth at a convention featuring framed art.
A man looks at art hoping to add to his already impressive collection.
The man surveying a booth at a conention featuring framed art is not necessarily going to add to his collection.  The man's collection is not necessarily already impressive.
exists e1 e2 s1 x1 x2 x3 x4 x5.(at(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_feature(e2) & n_art(x5) & a_framed(s1) & Theme(s1,x5) & (x3 = x4) & n_convention(x3) & Theme(e1,x2) & Actor(e1,x1) & v_survey(e1) & n_booth(x2) & n_man(x1))
exists e1 e2 p1 s1 x1 x2 x3.(for(e1,e2) & Topic(e2,p1) & Actor(e2,x1) & v_hope(e2) & exists e3.(to(e3,x3) & Actor(e3,x1) & v_add(e3)) & n_collection(x3) & a_impressive(s1) & Theme(s1,x3) & r_already(x3) & of(x3,x1) & n_male(x1) & at(e1,x2) & n_art(x2) & Actor(e1,x1) & v_look(e1) & n_man(x1))