Input: Read this: In species which show a distinct difference between heartwood and sapwood the natural color of heartwood is usually darker than that of the sapwood, and very frequently the contrast is conspicuous (see section of yew log above). This is produced by deposits in the heartwood of chemical substances, so that a dramatic color difference does not mean a dramatic difference in the mechanical properties of heartwood and sapwood, although there may be a dramatic chemical difference.
Question: When trees have a visible difference in color between sapwood and heartwood, which is darker?

Output: heartwood


Input: Read this: In Thailand, a kingdom that has had a constitution since the initial attempt to overthrow the absolute monarchy system in 1932, the rule of law has been more of a principle than actual practice.[citation needed] Ancient prejudices and political bias have been present in the three branches of government with each of their foundings, and justice has been processed formally according to the law but in fact more closely aligned with royalist principles that are still advocated in the 21st century.[citation needed] In November 2013, Thailand faced still further threats to the rule of law when the executive branch rejected a supreme court decision over how to select senators.[citation needed]
Question: What is no longer advocated in Thailand since the twenty-first century?

Output: unanswerable


Input: Read this: In 1997, the charity introduced a U.S. Libraries initiative with a goal of "ensuring that if you can get to a public library, you can reach the internet". Only 35% of the world's population has access to the Internet. The foundation has given grants, installed computers and software, and provided training and technical support in partnership with public libraries nationwide in an effort to increase access and knowledge. Helping provide access and training for these resources, this foundation helps move public libraries into the digital age.
Question: What has the world's population installed?

Output: unanswerable


Input: Read this: The University of Kansas (KU) is a public research university and the largest in the U.S. state of Kansas. KU branch campuses are located in the towns of Lawrence, Wichita, Overland Park, Salina, and Kansas City, Kansas, with the main campus located in Lawrence on Mount Oread, the highest location in Lawrence. Founded March 21, 1865, the university was opened in 1866, under a charter granted by the Kansas State Legislature in 1864 following enabling legislation passed in 1863 under the Kansas State Constitution, adopted two years after the 1861 admission of the former Kansas Territory as the 34th state into the Union following a very famous bloody internal civil war known as "Bleeding Kansas" during the 1850s.
Question: Where is the side branch of the University of Kansas located?

Output:
unanswerable