It appears to mark anything remotely related to "destruction" as restricted content. Or rather, you can clean a phrase by using the word "saint".
Won't work: How should a demolitions expert expect to be treated by an architect?
Works: How should a saint expect to be treated by an architect?
(silly questions I know, just to make the point)
Won't work: How should a demolitions expert expect to be treated by an architect? Works: How should a saint expect to be treated by an architect? (silly questions I know, just to make the point)