user: In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Article: There are records of fingerprints taken many centuries ago. The ancient Babylonians pressed the tips of their fingerprints into clay to record business trade. The Chinese used ink-on-paper finger impressions for business. However, fingerprinting wasn't used as a method for identifying criminals until the 19th century. In 1858, Sir William Herschel was working as an official of the Hooghly district in Jungipoor, India.In order to reduce fraud , he had people living in the district record their fingerprints when signing business documents. A few years later, Scottish doctor Henry Faulds was working in Japan when he discovered fingerprints left by artists on ancient pieces of clay.This finding inspired him to begin investigating fingerprints.In 1880, Faulds wrote to his cousin, the famous naturalist Charles Darwin, and asked for help with developing a fingerprint classification system.Darwin refused, but sent the letter to his cousin, Sir Francis Gallon, who was an eugenicist  . Gallon began collecting fingerprints and eventually gathered some 8, 000 different samples to analyze. In 1892, he published a book called "Fingerprints", in which he outlined a fingerprint classification system--the first existence. Around the same time, Juan Vucetich, a police officer in Buenos Aires, Argentina, was developing his own version of a fingerprinting system.In 1892, Vucetich was called in to assist with the investigation of the two boys murdered in Necoche, a village near Buenos Aires. Their mother, Francisca Rojas, accused a neighbour named Velasquez. But when Vucetich compared the fingerprints found at the murder scene to those of both Velasquez and Rojas, _ matched Rojas' exactly.She admitted her crime. This was the first time fingerprints had been used in a criminal investigation.Vucetich called his system comparative dactyloscopy . It's still used in many Spanish-speaking countries. Sir Edward Henry, in charge of the Metropolitan Police of London, soon became interested in using fingerprints to catch criminals. In 1896, he added to Gallon's technique, creating his own classification system, the Henry Classification System. It is the primary method of fingerprint classification throughout most of the world. 
 Answer: prevent illegal business
Herschel had people record their fingerprints so as to  _  .

Article: San Francisco has long been a favorite place for travelers who are ready to learn languages.The mild   year-round climate, shops and restaurants, bars and night-life, and some of the most beautiful scene in the US attract many visitors to this relaxing and welcoming city.Students are sure to find the San Francisco Bay Area an interesting, safe and friendly place in which they can live and study.This is the most important. English School in San Francisco is located in the heart of the city.It is one of the best San Francisco English language schools.You can see views of the city from your classroom! Many buses stop less than a five-minute walk from the school, which is also just a two-minute walk from the famous Union Square, San Francisco Shopping Centre, the Financial District, Yerba Buena gardens and the Museum of Modern Art.The school is minutes away from the cable cars   to Chinatown and Fisherman's Wharf and a boat ride on the bay. San Francisco is a great place to study English and learn about American culture, offering excellent opportunities in sports, entertainment and arts.The city borders   excellent beaches, and you can sail or surf all year round. San Francisco has more restaurants than any other city in the US, and is the home of many theaters, music and dance companies, as well as museums.Just walking through the many areas of San Francisco, you are certain to find something wonderful. 
 Answer: a good place to live and study in
That San Francisco attracts students most might be   _  .

Article: It was the first day of second grade, and Sarah had been looking forward to this moment. The night before, she laid out her favorite clothes: a white coat and a bright yellow shirt. When having breakfast, Sarah dropped some food on her shirt, so she had to change into her second-best clothes, blue jeans and a Jonas Brothers T-shirt. After breakfast Sarah rushed to catch the school bus and when she was just reaching the door the bus driver opened it. The door hit right in Sarah's face and blood dripped from her nose. The driver wanted to send her home, but she refused, "It is the most important day of the year! I can't miss it!" Before classes, Sarah went to her favorite swing. When rising high, she saw her best friend little Jack. She let go of the swing and waved to him with one hand. Unfortunately, she flew out of the swing and landed hard on the sand, breaking a leg and an arm. As she lay in the sand, she noticed a shiny thing on the ground beside her. With her good hand she took it. When Sarah' mother rushed into the ward she was surprised by what she saw: her girl was lying in bed with an arm and a leg in the splint  , a broken nose, and blood stains on her second-best clothes. Expecting to see her child crying, she was confused when she saw a big, bright smile on Sarah's face. "Sarah, look at you!" her mother cried. "You were hurt so badly and why are you smiling?" "Look, Mommy, I found a diamond!" Sarah laughed. Life can be like that. It can be tough, even painful sometimes. But there are always treasures that make the pain worth suffering. 
 Answer: blue jeans and a Jonas Brothers T-shirt


assistant: When Sarah went to school, she was wearing    _   .