answer: there is one person in the video .
question: how many people are in the video ?
answer: no , he is in the video the whole time .
question: does this person ever leave the field of view ?
answer: he went to the doorway for a vacuum .
question: in the door way to the next room , there is an object . what is that ?
answer: he goes for the vacuum .
question: when he gets up , does he have anything in his hands ?