 ::::: For the record we are not rejecting 'your' prequels either, we are just suggesting the list is presented in a way such that readers can identify the traits they have. In that sense it is nothing to do with RS, it is an editorial decision simply about the best way to present the information.  In this manner something like the time travel ape films, would be presented as a list of films that have both prequel and sequel traits, which is distinct from films that are just full-on prequels.   