Input: Read this: When a molten metal is mixed with another substance, there are two mechanisms that can cause an alloy to form, called atom exchange and the interstitial mechanism. The relative size of each element in the mix plays a primary role in determining which mechanism will occur. When the atoms are relatively similar in size, the atom exchange method usually happens, where some of the atoms composing the metallic crystals are substituted with atoms of the other constituent. This is called a substitutional alloy. Examples of substitutional alloys include bronze and brass, in which some of the copper atoms are substituted with either tin or zinc atoms. With the interstitial mechanism, one atom is usually much smaller than the other, so cannot successfully replace an atom in the crystals of the base metal. The smaller atoms become trapped in the spaces between the atoms in the crystal matrix, called the interstices. This is referred to as an interstitial alloy. Steel is an example of an interstitial alloy, because the very small carbon atoms fit into interstices of the iron matrix. Stainless steel is an example of a combination of interstitial and substitutional alloys, because the carbon atoms fit into the interstices, but some of the iron atoms are replaced with nickel and chromium atoms.
Question: What is formed by substituting tin or zinc atoms with copper?

Output: unanswerable


Input: Read this: Protestantism spread in Europe during the 16th century. Lutheranism spread from Germany into its surrounding areas,[c] Denmark,[d] Norway,[e] Sweden,[f] Finland,[g] Prussia,[h] Latvia,[i], Estonia,[j] and Iceland,[k] as well as other smaller territories. Reformed churches were founded primarily in Germany and its adjacent regions,[l] Hungary,[m] the Netherlands,[n] Scotland,[o] Switzerland,[p] and France[q] by such reformers as John Calvin, Huldrych Zwingli, and John Knox. Arminianism[r] gained supporters in the Netherlands and parts of Germany. In 1534, King Henry VIII put an end to all papal jurisdiction in England[s] after the Pope failed to annul his marriage to Catherine of Aragon; this opened the door to reformational ideas, notably during the following reign of Edward VI, through Thomas Cranmer, Richard Hooker, Matthew Parker and other theologians. There were also reformational efforts throughout continental Europe known as the Radical Reformation—a response to perceived corruption in both the Roman Catholic Church and the expanding Magisterial Reformation led by Luther and various other reformers—which gave rise to Anabaptist, Moravian, and other Pietistic movements. In later centuries, Protestants developed their own culture, which made major contributions in education, the humanities and sciences, the political and social order, the economy and the arts, and other fields.
Question: Where did Lutheranism begin?

Output: Germany


Input: Read this: In 1982, the US Mint began minting pennies coated in copper but made primarily of zinc. With the new zinc pennies, there is the potential for zinc toxicosis, which can be fatal. One reported case of chronic ingestion of 425 pennies (over 1 kg of zinc) resulted in death due to gastrointestinal bacterial and fungal sepsis, whereas another patient, who ingested 12 grams of zinc, only showed lethargy and ataxia (gross lack of coordination of muscle movements). Several other cases have been reported of humans suffering zinc intoxication by the ingestion of zinc coins.
Question: What is a requirement with the new zinc pennies?

Output: unanswerable


Input: Read this: Africans were brought to Charles Town on the Middle Passage, first as "servants", then as slaves. Ethnic groups transported here included especially Wolof, Yoruba, Fulani, Igbo, Malinke, and other people of the Windward Coast. An estimated 40% of the total 400,000 Africans transported and sold as slaves into North America are estimated to have landed at Sullivan's Island, just off the port of Charles Town; it is described as a "hellish Ellis Island of sorts .... Today nothing commemorates that ugly fact but a simple bench, established by the author Toni Morrison using private funds."
Question: What author paid for the simple bench at Sullivan's Island?

Output:
Toni Morrison