A boy sits in the library, reading a book.
A child reads a book in a room.
A boy reading a book is same as child reads a book
exists e2 e1 x1 x2 x3.(n_library(x2) & for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_read(e2) & n_book(x3) & in(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_boy(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & in(x2,x3) & n_room(x3) & n_book(x2) & n_child(x1))