In this task, you will be shown an extract from a movie plot and a question. You need to provide the correct answer for it. Short answers containing words that are present in the passage are preferred.

[EX Q]: The scientific team of Dr. David Conway (William Leslie), Dr. Ellis Morton (Tristram Coffin) and Laura Hutchinson (Kathryn Grant) has built a machine that can predict earthquakes. After predicting one will hit California within the next 24 hours to a uniformly skeptical Gov. Cheney (Raymond Greenleaf) and state-level political and civil defense officials, the earthquake does materialize and does immense damage to northern parts of the state. Now with the support and funding necessary from the reformed skeptics, the team works on further predictions and comes to the conclusion that a wave of earthquakes are pending in and around the southwestern United States. They trace the epicenter of the pending disaster to an area beneath the Carlsbad Caverns and descend to a hitherto unexplored level.Here they find a strange ore which, when removed from contact with water, becomes highly explosive, and realize that this element, somehow working its way from deep in the Earth, is responsible for the earthquakes. Although the material is not analyzed for specific atomic traits, it is named Element 112 just because so far, 111 chemical elements had been discovered. A computer determines that in approximately one month, enough of Element 112 will emerge from the deep earth to cause the entire planet to explode. A desperate operation ensues worldwide to blast and trench the ground to let water in and cover Element 112, keeping it from drying out and expanding., Question: In the movie, what does the machine do that Dr. David Conway and his colleagues built?
[EX A]: Answer: predict earthquakes

[EX Q]: The documentary examines the steroid use of the director Christopher Bell and his two brothers who all grew up idolizing Arnold Schwarzenegger, Hulk Hogan, and Sylvester Stallone, and also features professional athletes, medical experts, fitness center members, and US Congressman talking about the issue of anabolic steroids.[4]Beyond the basic issue of anabolic steroid use, Bigger, Stronger, Faster* examines the lack of consistency in how America views drugs, cheating, and the lengths people go to achieve success.This includes looking beyond the steroid issue to such topics as Tiger Woods laser eye correction to 20/15 vision, professional musicians use of anxiety reducing drugs, or athletes' dependence on cortisone shots, which are a legal steroid.The film also takes a skeptical examination on claims to the health risks of steroids and is highly critical of the legal health supplement industry., Question: What are other professions mentioned as having used other types of drugs?
[EX A]: Answer: Athletes and musicians.

[EX Q]: The rocketship MR-1 (for "Mars Rocket 1"), returns to Earth after the first manned flight to Mars. At first thought to have been lost in space, the rocket reappears but mission control cannot raise the crew by radio. The ground crew land the rocket successfully by remote control. Two survivors are found aboard: Dr. Iris Ryan (Naura Hayden) and Col. Tom O'Bannion (Gerald Mohr), the latter's arm covered by a strange alien growth. The mission report is recounted by Dr. Ryan as she attempts to find a cure for Col. O'Bannion's arm.While exploring Mars, Ryan is attacked by a carnivorous plant, which is killed using a freeze ray (nicknamed "Cleo") fired by Chief Warrant Officer Sam Jacobs. They also discover an immense bat-rat-spider creature, after mistaking its legs for trees, and the monster is repelled, again by Jacobs. When they return to their ship, the crew find that their radio signals are being blocked and the MR-1 is grounded by a force field. O'Bannion leads the crew to a Martian lake with a city visible on the other side. They cross in an inflatable raft, only to be stopped by a giant amoeba-like creature with a single spinning eye. The creature kills Jacobs and infects O'Bannon's arm. The survivors escape to the MR-1 and commence liftoff. Prof. Theodore Gettell, the ship's designer, dies of an apparent heart attack due to the stress of the lift-off from Mars. The survivors then return to Earth, where O'Bannon's infected arm is cured using electric shocks.When the mission scientists attempt to examine the expedition's data recorders, all they find is a recorded message. An alien voice announces that the MR-1 crew were allowed to leave so they can deliver this message to Earth. The Martians have been watching human development throughout history, believe our technology has outpaced cultural advancement, and accuse mankind of invading their world. They warn humanity to never return to Mars or Earth will be destroyed in retaliation., Question: what announces that the MR-1 crew were allowed to leave so they can deliver this message to Earth?
[EX A]:
Answer: An alien voice