Today's task source is from http://www.talkingpeople.net/tp/exercises/reading/exercises/ghosts_factorfiction.htm.
That is good research composition.
This text have implicit opinion. because only one party is expressing its views. although the skepticism side is shown in that text and difference of opinion often appear, the non believer opinion is anticipated.
the author is expressing argumentation in this text. there are two sides of opinion, the believer and the skepticism. the believer expressing their argumentation in whole of second paragraph. then the skepticism argued that no solid proof of ghosts' existence has ever been found.
the standpoint of the text is explain the mindset of the believer and the non-believer. Some people believe that ghosts exist, but others remain highly skeptical due to the lack of any evidence.
and the final standpoint is : Skeptical