user: Problem: OPTIONS:
- Lexus LS 400 is a cheaper car
- Prius may be a kind of environmentally friendly car
- Corona became popular as soon as introduced to the US
- Toyota's plant opened in Georgetown symbolized its "Americanize" tactics
Q: Read the following article and answer the question. Article: Toyota is the world's largest automaker, but its road to success has been long and filled with speed bumps . 1958:The company's first foray into the American market was the Toyopet in 1958. It was a flop. 1964:Toyota introduced their Corona line of automobiles and sales hit 6,400 in 1965, marking an increase in popularity. 1969:Toyota began importing the Corolla and in 1985 it would become the first Toyota built in the U.S. 1975:Toyota surpassed the popular German brand Volkswagen to become the top import sold in the U.S. 1986:The National Highway Traffic Safety Administration ordered its first _ of Toyota cars due to "speed control" problems. 1988:The First North American Toyota plant opened in Georgetown, Ky. 1989:Toyota introduced the Lexus LS 400, the company's first U.S. luxury car. It was a major hit. 1997:Toyota debuted their Prius gas-electric hybrid car. 2002:The first consumer complaints emerged of the Camry's engine surging under braking. 2004:The NHTSA opened a defect investigation into 2002-2003 Camry, Camry Solara and Lexus ES models. 2006:Toyota "Americanizes" and opened a new plant in Texas to build full-size pickups 2007:Toyota surpassed General Motors to become the world's largest automaker. 2007:The NHTSA investigated pedal entrapment in some Toyota vehicles, which led recalls of floor mats on Camry and Lexus models. 2007:The NHTSA investigated pedal entrapment in some Toyota vehicles, which led recalls of floor mats on Camry and Lexus models. Aug. 2009:An off-duty California Highway Patrol officer and three family members were killed when their rental 2009 Lexus ES speeds out of control. Nov. 2009:Toyota recalled 3.8 million Lexus and Toyota models to remove floor mats that can trap pedals. Jan. 2010:Toyota recalled approximately 2.3 million more vehicles with potential sticking pedal problems. On Jan. 26, Toyota stopped selling eight models involved in the recall. Feb. 2010:Prius and Lexus hybrids are now being recalled for brake problems in 2010 models. Question: We can infer from the passage that  _ Answer:
Answer: Prius may be a kind of environmentally friendly car
Problem: OPTIONS:
- Valerie looks like a real beautiful woman
- Valerie can do whatever a human receptionist can't
- Visitors can have a conversation with Valerie
- Valerie doesn't understand of the visitors' questions sometimes
Q: Read the following article and answer the question. Article: She might not be paid, but Carnegie Mellon University's newest staff member does all that a typical receptionist can do: give directions, answer the phone -- and even gossip about her life. University officials revealed what it considers to be the world's first robot receptionist with a personality of her own. The blond  receptionist, named "Valerie," puts on a headset and interacts with people by talking about her boss, her psychiatrist  and her dream. Valerie, the roboceptionist, sits in a custom-made booth at the entrance of a computer science hall. With her ability to distinguish motion, she greets visitors as they come near. Type in a question on a keyboard and she gives directions around the Pittsburgh campus and provides visitors information about the weather. More than that, she tells stories about her life. From her              booth, passers-by often can hear her talking              on the phone. She recognizes when someone is in front of her and remembers their characteristics. She can change between tasks from talking on the phone to answering a question. Valerie, however, does have her limit. She is a drum-shaped mechanical device with a digitally lively face that appears on a computer display. Visitors have to type on a keyboard to communicate with her. And she understands only simple questions. Eventually her creators would like to install face recognition so people don't have to insert an identity card for her to remember them. And people won't have to type their questions on a keyboard if they can solve the problem of voice recognition in a crowded hall. Valerie will tell the story of a robot living in a human world. Question: According to the passage we know that  _  . Answer:
Answer: Valerie doesn't understand of the visitors' questions sometimes
Problem: OPTIONS:
- People's indifference to the robots.
- Safety of the robot delivery.
- Accuracy of the robot delivery.
- People's concern about public traffic.
Q: Read the following article and answer the question. Article: Your next Saturday night takeaway could be brought to you by a robot after a major food delivery company announced plans to use automated vehicles to transport meals. Europe's biggest online takeaway food company Just Eat has partnered with Starship Technologies to deliver food with robots on the streets of London later this month. "Nobody has ever done deliveries with land-based robots," said Allan Martinson, the chief operating officer of Starship. The robot courier can travel up to 4 miles per hour for about 10 miles. It uses a GPS signal and nine cameras to navigate . Instead of a person arriving at their door, customers could find themselves receiving a notification  on their phone that says a robot is on its way and a code to unlock the automated courier. "Put the code in, the robot opens up, and there's your food," said David Buttress, chief manager of Just Eat. The robot, which has so far been tested in Greenwich, Milton Keynes and Glastonbury, costs PS1 to transport within 3 miles, compared with the PS3 to PS6 it costs for a human courier. To date 30 robots have driven nearly 5,000 miles without getting into an accident or finding themselves picked on by passers-by. They have driven in more than 40 cities around the world, including London and Tallinn, Estonia. An initial worry was how the public would react to robots. But Martinson said the public has been calm when passing the delivery machine on the streets. "The most surprising reaction has been the lack of reaction," said Martinson. Another significant fear was that people would disrupt  the robots, or try to steal them and their contents. To prevent this, the robot is fitted with nine cameras, two way audio, and movement sensors that send a warning if it is lifted off the ground. And it opens only with a pass code provided to the customer via a notification. "It's much easier to shoplift than it is to steal a robot," said Martinson. Question: Which of the following is one of the worries about Starship robots? Answer:
Answer:

assistant: Safety of the robot delivery.