According to the Graph API docs you can send a DELETE request to /comment_id/likes and that'll clear the like.
You issue a DELETE request to the LIKES endpoint for the Facebook object that you're trying to remove a like from. You need a valid user session access token (or an offline access token) in order to accomplish this. It's also worth noting that you can't like/unlike PAGES on Facebook using this method, that is a process that the user must manually complete (via visiting the page or clicking a like button from their news feed, or even using the like button social widget.).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.