Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Input: Consider Input: Context: A family in Guelph, Ontario is spending a year living "in 1982".They're doing it so their kids can see what life was like before technology like iPads, computers and even coffee machines was part of everyday life. They have stopped using all technology from their home and are relying on the things people would have used back in the 80s.There is a box at the front door where people can put their cell phones in, while they're visiting the family. Blair McMillan and his wife Morgan want their kids--Trey, 5, and Denton, 2 -- to have a year without technology. Instead of reading ereaders, they are reading books. Instead of using a GPS, they used paper maps. The home the family is living in was built in the 1980s.Even the way they dress and style their hair is from the 80s. The whole idea started when young Trey was called to come outside. He didn't because he was busy playing on the iPad. That's why his dad thought of the idea of living "in 1982" for a year. The family plans to live like "it's 1982" until April next year. To them, one of the hardest things was giving up their cell phones. 
 Question: Who made the family have the idea of living "in 1982"?

Output: young trey.


Input: Consider Input: Context: A rock is a naturally formed, non-living Earth material. Rocks are made of collections of mineral grains that are held together in a firm, solid mass (Figure 1.1). How is a rock different from a mineral? Rocks are made of minerals. The mineral grains in a rock may be so tiny that you can only see them with a microscope, or they may be as big as your fingernail or even your finger (Figure Rocks are identified primarily by the minerals they contain and by their texture. Each type of rock has a distinctive set of minerals. A rock may be made of grains of all one mineral type, such as quartzite. Much more commonly, rocks are made of a mixture of different minerals. Texture is a description of the size, shape, and arrangement of mineral grains. Are the two samples in Figure 1.3 the same rock type? Do they have the same minerals? The same texture? The different colors and textures seen in this rock are caused by the presence of different minerals. A pegmatite from South Dakota with crystals of lepidolite, tourmaline, and quartz (1 cm scale on the upper left). Sample 2 Crystals are tiny or microscopic Magma erupted and cooled quickly Andesite As seen in Table 1.1, these two rocks have the same chemical composition and contain mostly the same minerals, but they do not have the same texture. Sample 1 has visible mineral grains, but Sample 2 has very tiny or invisible grains. The two different textures indicate different histories. Sample 1 is a diorite, a rock that cooled slowly from magma (molten rock) underground. Sample 2 is an andesite, a rock that cooled rapidly from a very similar magma that erupted onto Earths surface. A few rocks are not made of minerals because the material they are made of does not fit the definition of a mineral. Coal, for example, is made of organic material, which is not a mineral. Can you think of other rocks that are not made of minerals? Click image to the left or use the URL below. URL: Click image to the left or use the URL below. URL: 
 Question: _______________________ is a naturally formed, non-living earth material.

Output: rock


Input: Consider Input: Context: Neurofibromatosis type 1 (NF1) is an autosomal dominant genetic disorder affecting one in 3,500 individuals. The mutation rate in the NF1 gene is one of the highest known for human genes. Compared to other methods, the protein truncation test (PTT) provides improved efficiency in detecting NF1 mutations which are dispersed throughout the gene which spans 350 kilobases of genomic DNA. We have applied the PTT and subsequent sequence analysis of cloned cDNA to identify mutations in NF1 patients. We report here the identification of two novel (W336X and Q315X), and one recurrent (R304X) mutation located in exon 7 and show that all three premature termination codons lead to skipping of exon 7 in a proportion of the transcripts derived from the mutated allele. Possible mutation-induced alterations of the RNA secondary structure and their impact on skipping of exon 7 of the NF1 gene are explored and discussed. 
 Question: Which is the gene mutated in type 1 neurofibromatosis?


Output: nf1