Data about a post that was shared by the page including the time and contents of that post as well has how many times it was shared
Data about the reacting user and the reaction of that user. This includes values like "LIKE", "LOVE", and "WOW".
Insights of your Facebook Page’s posts, specifically, video posts. It contains fields that represent the video-related metrics of your video post, like how many times the video was played, the number of people who viewed it, etc.