People examine books in a library.
People are looking at books.
examine books in a library implies that looking at books.
exists e1 x1 x2 x3.(in(e1,x3) & n_library(x3) & Theme(e1,x2) & Actor(e1,x1) & v_examine(e1) & n_book(x2) & n_people(x1))
exists e1 x1 x2.(at(e1,x2) & n_book(x2) & Actor(e1,x1) & v_look(e1) & n_people(x1))