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.

Input: Consider Input: Article: Cloud seeding is a method of artificially causing clouds to produce precipitation in the form of rain or snow.Cloud seeding has also been used in attempts to modify the severity of hail storms and hurricanes.The effectiveness of cloud seeding remains controversial .but it continues to be used in some regions to try to increase rainfall for agriculture and to build snow packs for water supplies and power production. Cloud seeding was developed by American scientists Irving Langmuir and Vincent Joseph Schaefer during and after World War II.Their work began as an effort to learn more about the buildup of ice on airplane wings, and eventually led them to attempt to create rainfall by releasing several pounds of crushed frozen carbon dioxide into a cloud from an airplane.In this form, the carbon dioxide is called dry ice.On November 13, 1946, the technique appeared to produce snow directly under the cloud; the snow then turned to rain as it fell to the ground. For their experiment, Langmuir and Schaefer selected a supercooled cloud, one in which the water droplets remain liquid in subfreezing temperatures.Their theory was that small grains of dry ice falling through the cloud would cause tiny droplets of water vapor in the cloud to freeze into crystals that attracted more water vapor.Their theory proved to be correct and eventually the crystals became heavy enough to fall from the cloud as snow.As the snow reached the warmer temperatures closer to the ground, it melted and became rain. Another scientist, Bernard Vonnegut, produced a method of cloud seeding using silver iodide .He used particles of silver iodide because its crystal structure resembled that of ice in clouds.Silver iodide also had practical advantages over frozen carbon dioxide It could be stored at room temperature and did not require an airplane as a delivery mechanism.Instead, silver iodide crystals could be fired by cannons high into the air, where wind carried them into the clouds.
Answer: it is similar

Output: Bernard chose silver iodide as a method of cloud seeding because _ .

Input: Consider Input: Article: Annual holidays have become a luxury and are no longer a staple of family life, according to government research. A getaway of a week or more is no longer considered essential by many families and is often beyond their reach, said the analysis of what parents and children say they really need. Fashionable clothes for the children, expensive birthday parties and lots of toys are also on the list of luxuries families don't have to have. Instead, recession -hit parents are thinking of the future, and the things they want for their children centre around learning to behave properly, good education and good health. Their picture of what a family ought to have includes a space to eat together away from the television, plenty of fruit and vegetables, and bicycles so children can get exercise. The breakdown of necessities and luxuries was prepared by researchers from the Department for Work and Pensions(DWP) who were trying to establish an up-to-date picture of what parents say they really need. Their findings show how families have scaled down their expectations in the face of economic difficulties -- how parents are now concentrating their attention and money firmly on the long-term interests of their children. Many believe that while it is vital for a family to do things together, day trips or weekend breaks are enough. Spending on furniture or decorating the house was also considered luxurious, unless the state of the home was so bad it became difficult to invite visitors in. Instead, researchers said: A family home should have an area where the family can eat together, not on their laps in front of a television. Families should be able to go on outings, overnight trips and possibly short holiday: the fact of being able to share these experiences is more important than the precise activity and its cost.
Answer: day trips or weekend breaks are enough for families to share experiences

Output: In the opinion of most parents, _ .

Input: Consider Input: Article: Children form opinions about drugs and alcohol at a very early age. Even four and five year olds have definite opinions about alcohol. Preschoolers, because of the commercials they see on TV, often think that alcohol helps people have more fun and be better athletes! Images of alcohol are everywhere in out society--consumption of alcohol is represented twice per hour in daytime shows, and three times in an average evening program. Despite the wide spread of alcohol in our society, and the problems that can be connected with it, many parents feel uncomfortable when talking about alcohol with their children, or are not sure when and how to start. Many parents believe that teenage drinking is something that their children would never be involved in. Unfortunately, teenage drinking is very common in North Dakota. In a state wide survey of adolescents in junior and senior high school. Only 24% claimed to have never consumed alcohol. When asked about their drinking in the past 30 days: *61% adolescents reported drinking *42% drank five or more drinks in a row *17% reported binge drinking *4.2% reported driving and drinking Other research on rural youth in North Dakota has found that about 10% of a sample of fifth and sixth graders were engaged in frequent drinking. Teenagers who reported alcohol use (especially those who began use in late elementary school and junior high school) were more likely to be depressed, feel less positive about both their family and friends, and have poorer grades. Research has found that children and even teenagers look to their parents in making decisions about important things in their life. Decisions about using alcohol are undoubtedly something that parents will want to provide guidance about. Here are some suggestions about talking to children about alcohol.
Answer: negative
Output: The author's attitude towards images of alcohol is _ .