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.

Ex 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

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

Ex Input:
Article: Like the Five Olympic Rings from which they draw their color and inspiration, the Five Friendlies will serve as the Official Mascots of Beijing 2008 Olympic Games, carrying a message of friendship and peace and blessings from China to children all over the world. Designed to express the playful qualities of five little children who form an intimate circle of friends, the Five Friendlies also embody the natural characteristics of four of China's most popular animals--the Fish, the Panda, the Tibetan Antelope, the Swallow--and the Olympic Flame. Each of the Friendlies has a rhyming two-syllable name--a traditional way of expressing affection for children in China. Beibei is the Fish, Jingjing is the Panda, Huanhuan is the Olympic Flame, Yingying is the Tibetan Antelope and Nini is the Swallow. When you put their names together--Bei Jing Huan Ying Ni--they say "Welcome to Beijing," offering a warm invitation that reflects the mission of the Five Friendlies as young ambassadors for the Olympic Games. The Five Friendlies also embody both the landscape and the dreams and aspirations of people from every part of the vast country of China. In their origins and their headpieces, you can see the five elements of nature--the sea, forest, fire, earth and sky--all stylistic rendered in ways that represent the deep traditional influences of Chinese folk art and ornamentation.
Answer: blessing

Ex Output:
The Official Mascots of Beijing 2008 Olympic Games carry the following messages EXCEPT _ .

Ex Input:
Article: Every year, millions of Americans see their personal information leak into the wrong hands. Maybe there's spyware on the their computer, or a service they use suffered a security reach, leaving customers at the risk of exposure. Or perhaps their password is easy to guess. Don't fear: You can easily set up proper defenses. Here's how. * Clean Your Computer and Smartphone Before you put new security measures into place, make sure your devices are as spotless as possible. This means installing a good antivirus program and taking the time to clear out any spy -- or malware that may have already infected your system. These days, it's also worth it to make sure your phone is safe from viruses. Iphones are less likely to be targeted by spyware, but Android users should download the Lookout app to scan their devices and ensure everything is as it should be. * Secure Your WiFi. It's fairly easy for potential criminals to gain access to your information if they're able to share your connection -- that's why you want to be careful when using public WiFi. Even though you put security measures into place a couple of years ago, it's a good idea to refresh your settings. * Use passwords What you've heard is true: Passwords should use a variety of special characters, numerals, letters, and cases when possible. * Check the shopping security Take care when shopping online. Always check the security symbols when using an online site for shopping. If the lock icon encryption is not there, do not give out credit details. Also, check that the site is legal -- never go to a site from a random email and start shopping online. Keep a separate credit card just for online shopping. This will make it easier to cancel if something bad does happen and your other credit card for "in real life" can still be used uninfluenced. Don't store information on any store's website. It may be convenient but it's also a possible loss to you if the site is hacked.
Answer: ways of avoiding identity theft

Ex Output:
This passage is mainly about _ .