The name of the originator of the parent page being commented on.
Targets in the parent.* namespace are populated for Facebook Pages comments on comments. Note that Facebook currently permits comments to go only one level deep. Users can comment on original content and those comments can have 'child' comments but the thread connot go deeper than that.
- Filter for pages by specified originators that are receiving comments:
facebook_page.parent.from.name in "George Washington, John Adams, Thomas Jefferson, James Madison"
Target service: Facebook_Page
Always exists: No