Bulk Update Request: removing plural books

Script

create alias book_stack (269) -> book (36604)
create alias sitting_on_books (1) -> sitting_on_book (14)
create implication sitting_on_book (14) -> book (36604)
create implication standing_on_book (0) -> book (36604)
create implication sitting_on_book (14) -> sitting_on_object (191)
create implication standing_on_book (0) -> standing_on_object (169)

Votes