Given a paragraph about movies, and a set of conversational question answers about the paragraph, generate a relevant question to the topic of the paragraph. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`.

CONTEXT: It may be the case that the demon is cunning and wanted to make a doubt in the mind of Karras, already having a lack of faith in demons and ghosts. As we have seen that demon plays with Karras' emotions related to his mother too. The demon reads on mind and emotions so it's not possible that he got fooled by tap water at all.  <sep>  Q: Why does the demon that possesses Regan react to the “fake” holy water? A: The demon reads on mind and emotions so it's not possible that he got fooled by tap water at all  Q: So why did he do it? A: It may be the case that the demon is cunning and wanted to make a doubt in the mind of Karras, already having a lack of faith in demons and ghosts 
WHo sprinkled the fake holy water?

CONTEXT: In Prometheus, Elizabeth Shaw and Charlie Holloway are scientific partners who are also in a relationship before the events of the movie. They discover the location of LV-223 and get the support from Weyland to fund a scientific trip. It is entirely coincidental that they are in a relationship, though of course that fact is used later in the plot. They are a couple on the ship because they are responsible for the expedition. The situation in Alien Covenant is entirely different. This is a colonization ship, a deliberate, one-way trip to settle on another planet. It is clearly deliberate that the ship is (entirely?) crewed by couples who are likely to want to settle and raise families in their destination. I don't think you can extrapolate the second example to say it is 'encouraged officially'. Its clearly encouraged, possibly a requirement for the people funding a colonization of another planet, but why would it be a general requirement? The trip in Prometheus and the later Nostromo isn't one-way and is largely crewed by single people.  <sep>  Q: Is it a coincidence that there are many couples boarding ships in Alien? A: The situation in Alien Covenant is entirely different. This is a colonization ship, a deliberate, one-way trip to settle on another planet 
I am wondering in the Alien universe, having a married couple to go onto the same trip is encouraged officially?

CONTEXT: Finally found time to scan through the book. In it, Robert Highland is not an Inspector but rather a Sergeant. He is the #2 Scotland Yard officer working with the Sean Miller investigation after Commander Owens, although Owens thought he had a good mind for investigations and would make a fine Inspector some day. In the book version of events, Highland did not know about the schedule or route - they were picked by Commander Owens. Highland also did not have the conversation with Miller, and he survived the rescue despite being shot, remaining in critical condition with the bullet lodged near his spine. He then spent several months learning to walk again with a cane and leg braces. There is no indication in the book that Robert Highland was allied, or even sympathetic to, Kevin O'Donnell or his group of terrorists.  <sep>  Q: Was Inspector Highland the inside man? A: There is no indication in the book that Robert Highland was allied, or even sympathetic to, Kevin O'Donnell or his group of terrorists 

When did the officers not seem to know what was going on?