People examine books in a library.
Students at the library are searching for good books for their reports.
That there a lot of people in the library examining books but it is the students  who are looking for good books for their reports.
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 s1 x1 x2 x3 x4.(n_report(x4) & of(x4,x2) & n_thing(x2) & n_library(x2) & for(e1,x3) & for(x3,x4) & n_book(x3) & a_good(s1) & Theme(s1,x3) & Actor(e1,x1) & v_search(e1) & at(x1,x2) & n_student(x1))