Original sentence: In this adaptation Japp - not Sheppard - is Poirot's assistant, leaving Sheppard as just another suspect and therefore neglecting the key twist of the novel
Edited sentence: It is arguably a poor adaptation of the novel, since Japp - not Sheppard - is Poirot's assistant, leaving Sheppard as just another suspect and therefore neglecting the key twist of the novel.This change may have been done however to make the visual adaptation more viable