How to identify users who shared a Facebook post

Jun 29 at 6:08 PM
Edited Jul 15 at 2:15 PM
Is it possible to identify the users who shared a Facebook post in a Facebook Fanpage search? Can I know this from the relationship column, and if yes then how is it labeled?

Related to the former question I have a second one: is it possible to map the propagation/virality of a Facebook post (e.g., a video post) with a NodeXL analysis of the Facebook Fanpage where the content was posted or from/on which the content was shared?

Thx for your help.

Patrick