input question: Generate a question about the following movie plot: The story opens in the island village of Mandwa. A school teacher, Dinanath Chauhan (Chetan Pandit); highly respected by the villagers tries to dissuade them from giving away their lands on lease to Kancha Cheena (Sanjay Dutt), the son of the village head who plans to start a drug mafia. Knowing this, Kancha decides to get rid of the school teacher. He ambushes and murders a young girl inside the school, framing Chauhan for the murder. With the support of the villagers, Kancha then kills Chauhan by hanging him to death from a tree which is witnessed by young Vijay Chauhan (Arish Bhiwandiwala), the son of the teacher. Vijay Chauhan along with his pregnant mother Suhasini Chauhan (Zarina Wahab) leave the village. Destitute, they find shelter in the city of Mumbai but Vijay harbours intentions to go back to Mandwa and kill Kancha. While in Mumbai, Vijay's mother delivers a baby girl named Shiksha. Vijay is attracted to Rauf Lala (Rishi Kapoor), a local girl-trafficker and importantly an enemy of Kancha and wants to get into his company. He earns his favour and joins his gang. Meanwhile, his mother along with his baby sister leave Vijay's side as he resorts to violence.A grown-up Vijay (Hrithik Roshan) now works for Rauf Lala and finds himself as his trusted wing-man. Once inspector and now commissioner, Gaitonde (Om Puri) acts as a silent guardian for Vijay and tries to eliminate crime in Mumbai. During the time when Rauf's influence over the drug business in Mumbai is falling, Kancha decides to grow his influence as a drug lord in the city and sends his aid, Shantaram (Ravi Jhankal) over to Mumbai for the process. Vijay with the help of the commissioner disrupts this plan and is lauded by Lala. He further gains the trust of Lala by taking a bullet shot which was aimed for Lala's son, Mazhar (Rajesh Tandon); but is later revealed as a conspiracy involving Vijay and Shantaram to eliminate Mazhar.After murdering both Mazhar and Shantaram, Vijay brings Mazhar's corpse to Lala, who falls sick and is admitted into a...???
output answer: Whom does Kancha murder?

Generate a question about the following movie plot: Background: 1,400 years ago, Vampires had decided that the best way to ensure the survival of their species was for three Elders--Viktor, Marcus, and Amelia--to 'leap frog' through time, one ruling while the other two slept, each being awakened at their appointed time according to a never-to-be-broken covenant. 1,000 years ago, during the reign of Viktor, the oldest and strongest of the Elders, the Vampire-Lycan War began. 600 years ago, Kraven set the 'great blaze' which killed Lucian, the leader of the Lycans. Kraven brought back a brand cut from Lucian's arm as proof of his death, a deed which earned Kraven high favor with Viktor, who put Kraven in charge of their coven. The great blaze caused the Lycans to scatter. Vampire Death Dealers, armed with silver bullets and shuriken, have been picking Lycans off one by one until very few remain.Present time: Three Death Dealers--Selene, Rigel, and Nathaniel -- follow two Lycans into a subway station in an unnamed European city. A firey gun battle ensues in which Rigel is killed, one of the Lycans gets away, and Nathaniel comes up missing. In the chaos, Selene (Kate Beckinsale) makes two discoveries: 1) the Lycans have devised an ultraviolet bullet that can kill vampires, and 2) there appears to be a large band of Lycans amassing under the subway.Selene hurries back to alert the Vampires at Kraven's luxurious masnion that sits on the outskirts of the city, but they are more interested in the clothes they are going to wear at tonight's formal party with the coven from across the 'great ocean' in celebration of the upcoming awakening of Marcus by Amelia, the current reigning Elder. Not interested in their gaities, Selene views some digital photos Rigel took of the Lycans and notices that they appear to have been following a human. A computer search reveals the human is Michael Corvin (Scott Speedman), an intern at a local hospital.Meanwhile, the wounded Lycan has returned to the Lycan den with the bad news that he lost the candidate he was tailing, as well as to...
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Answer: Selene realizes the two Lycans were following a human named what?

Problem: Given the question: Generate a question about the following movie plot: This article needs an improved plot summary. (November 2015) Two scientists invent an anti-aging machine. On one of their test runs, a part of the machine falls out, causing it to not be able to turn on. The dog messes with the controls as they go inside of the machine to fix it. The dog turns it on causing the scientists to anti-age instead of the test subjects. Nothing happens at first and they leave the room. As the day progresses, their children Eddie (Tahj Mowry) and Marie (Raquel Lee) notice that their parents minds seem to become less-advanced and more childlike and their clothes change to things younger people would wear such as pigtails, overalls, striped shirts, etc. They realize it is the effects of the anti-aging machine and now they have to get their parents back into the machine and reverse the effects so they don't go out of existence, but there is a problem. Their parents keep making messes, running off, and doing everything they can to cause trouble and not go into the machine to age. The children get them into the machine right on the verge of poofing away and save their lives.
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The answer is:
In the movie how many scientists are working on the time machine?