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: The oldest and hardest cow beef may be made as tender and tasty as young and choice met. "This declaration was made by the French physicist Denis Papin in book published in 1681, which described his "New Digester" or pressure cooker. It was a cast iron pot with an air-tight lid, which allowed liquids to boil at a higher temperature than usual, and so it cooked food in a quarter of the time. The food was cooked by pressurized steam being forced through it at about 121degC. All pressure cookers were made of cast iron until 1905, when the first aluminum model was made in America. In 1938, Alfred Vischer, a man from Chicago, U. S. A., designed a simple interlocking pan and lid, and an improved pressure-tight seal --a replaceable rubber sealing ring. When Vischer's patent expired in 1954, many companies entered the field, and the rapid pressure cooker became popular with people with people who had little time to cook or had to supply food for unexpected guests.
Answer: 200

Output: From the passage we can learn pressure cooker made of cast iron lasted at least _ years.

Input: Consider Input: Article: Parents are often amazed at how fast their child grows and develops. New research has determined that the ability to quantify may develop much sooner than most parents realize. Kristy vanMarle, professor of the University of Missouri, has determined that contrary to what previous studies have shown, infants are able to quantify substances --like sand or water--as early as 10 months. As long as the difference between the two substances is large enough, infants will choose the larger amount, especially when it comes to food. With the assistance of her team researchers, vanMarle tested the quantifying skills of babies by presenting them with two cups: one containing a small amount of food, and one containing a larger amount. Consistently, the babies chose the larger amount. "Several studies throughout the last 15 years have shown that infants are very good at telling how many objects they see; however, infants don't seem to count things like water or sand," vanMarle said. "What we're saying is that they can quantify substances; The infants can see how much food goes into each cup and compare that in their memories. They decide which amount is larger, and they almost always select the larger one." This information further refutes the long-held idea that babies "know nothing of the world," vanMarle said. "Since psychologists have begun studying infants with sensitive measures, we've discovered a lot of early abilities. I think for parents, it should be exciting to know that there's somebody there that has some fundamental and basic knowledge of the world, and that knowledge is guiding their development," vanMarle said. In the future, vanMarle says this kind of study could be linked to a child's progress in math-related skills, although programs marketed to increase those abilities, such as "Baby Einstein," still have mixed reviews when it comes to academic study.
Answer: through their natural abilities

Output: Babies choose the larger amount of food _ .

Input: Consider Input: Article: When you think of an artist, you probably think of someone painting on canvas . But Guido Daniele creates fantastic paintings of birds, elephants, tigers, and giraffes by painting on skin. Born in Soverato, Italy, Guido Daniele has been called"Ha nd Gogh" (after artist Vincent van Gogh) since he began creating works of art on people' s hands in 1990. Painting on the hands can be a challenge because, unlike canvas, the skin moves when rubbed. Daniele' s models must remain perfectly still for hours as he paints. He often uses his daughter and his son as his "canvases". Before he can begin to create his "manimals" ( the artist' s name for his hand animals), Daniele studies photographs of the animal that he will be painting in order to be able to understand its character and give it life. "Next," he says, "I look at the hand from different perspectives ,and I begin to imagine what is the best way to position the hand for me to paint the animal. "He also studies the skin of the model, preferring it to have little hair and few blemishes . Daniele starts by drawing on the model' s hand with a pencil. He next paints the skin using watercolor1s made specifically for body art. The eyes of Daniele' s painted animals look amazingly real, and they are the most difficult part to paint. Paintings on hands must eventually be washed away. Guido Daniele says that he's gotten used to this part and that he doesn' t really mind seeing his work washed down the drain . " Tomorrow, I will paint the next one. The important thing is to take many good photo- graphs before washing the hand!"
Answer: animals
Output: Daniele' s paintings are mainly about _ .