Input: Article: In June 1963, Rev. Martin Luther King, Jr. gave a major speech in Detroit that foreshadowed his "I Have a Dream" speech in Washington, D.C. two months later. While the African-American Civil Rights Movement gained significant federal civil rights laws in 1964 and 1965, longstanding inequities resulted in confrontations between the police and inner city black youth wanting change. Longstanding tensions in Detroit culminated in the Twelfth Street riot in July 1967. Governor George W. Romney ordered the Michigan National Guard into Detroit, and President Johnson sent in U.S. Army troops. The result was 43 dead, 467 injured, over 7,200 arrests, and more than 2,000 buildings destroyed, mostly in black residential and business areas. Thousands of small businesses closed permanently or relocated to safer neighborhoods. The affected district lay in ruins for decades. It was the most costly riot in the United States.

Now answer this question: Who was the President of the United States in 1967?

Output: President Johnson

Article: From the league's inception through ArenaBowl XVIII, the championship game was played at the home of the highest-seeded remaining team. The AFL then switched to a neutral-site championship, with ArenaBowls XIX and XX in Las Vegas. New Orleans Arena, home of the New Orleans VooDoo, served as the site of ArenaBowl XXI on July 29, 2007. This was the first professional sports championship to be staged in the city since Hurricane Katrina struck in August 2005. The San Jose SaberCats earned their third championship in six years by defeating the Columbus Destroyers 5533. ArenaBowl XXI in New Orleans was deemed a success, and the city was chosen to host ArenaBowl XXII, in which the Philadelphia Soul defeated the defending champion San Jose Sabercats. In 2010, the location returned to being decided by which of the two participating teams was seeded higher. In ArenaBowl XXIII, the Spokane Shock defeated the Tampa Bay Storm at their home arena, Spokane Arena, in Spokane, Washington. In ArenaBowl XXIV, the Jacksonville Sharks, coming off of a victory in their conference final game four nights earlier, traveled to US Airways Center in Phoenix and defeated the Arizona Rattlers 7370. ArenaBowl XXV returned to a neutral site and was once again played in New Orleans, where the Rattlers returned and defeated the Philadelphia Soul. Since 2014 the ArenaBowl has been played at the higher-seeded team.

Question: What team won ArenaBowl XXI?
Ans: San Jose SaberCats

Here is a question about this article: There is some evidence, in the form of ice cores drilled to about 400 m (1,300 ft) above the water line, that Lake Vostok's waters may contain microbial life. The frozen surface of the lake shares similarities with Jupiter's moon, Europa. If life is discovered in Lake Vostok, it would strengthen the argument for the possibility of life on Europa. On 7 February 2008, a NASA team embarked on a mission to Lake Untersee, searching for extremophiles in its highly alkaline waters. If found, these resilient creatures could further bolster the argument for extraterrestrial life in extremely cold, methane-rich environments.
What is the answer to this question: For what was NASA searching?
****
So... extremophiles

The problem: Answer a question about this article:
The positions on the persistence of objects are somewhat similar. An endurantist holds that for an object to persist through time is for it to exist completely at different times (each instance of existence we can regard as somehow separate from previous and future instances, though still numerically identical with them). A perdurantist on the other hand holds that for a thing to exist through time is for it to exist as a continuous reality, and that when we consider the thing as a whole we must consider an aggregate of all its "temporal parts" or instances of existing. Endurantism is seen as the conventional view and flows out of our pre-philosophical ideas (when I talk to somebody I think I am talking to that person as a complete object, and not just a part of a cross-temporal being), but perdurantists have attacked this position. (An example of a perdurantist is David Lewis.) One argument perdurantists use to state the superiority of their view is that perdurantism is able to take account of change in objects.
Who holds that for an object to persist through time is for it to exist completely at different times?
****
The answer: endurantist

Problem: Please answer a question about the following article about Bird:
The skeleton consists of very lightweight bones. They have large air-filled cavities (called pneumatic cavities) which connect with the respiratory system. The skull bones in adults are fused and do not show cranial sutures. The orbits are large and separated by a bony septum. The spine has cervical, thoracic, lumbar and caudal regions with the number of cervical (neck) vertebrae highly variable and especially flexible, but movement is reduced in the anterior thoracic vertebrae and absent in the later vertebrae. The last few are fused with the pelvis to form the synsacrum. The ribs are flattened and the sternum is keeled for the attachment of flight muscles except in the flightless bird orders. The forelimbs are modified into wings.
What consists of very lightweight bones?
A: The skeleton

Question: Read this and answer the question

In 1911 arsphenamine, the first synthetic anti-infective drug, was developed by Paul Ehrlich and chemist Alfred Bertheim of the Institute of Experimental Therapy in Berlin. The drug was given the commercial name Salvarsan. Ehrlich, noting both the general toxicity of arsenic and the selective absorption of certain dyes by bacteria, hypothesized that an arsenic-containing dye with similar selective absorption properties could be used to treat bacterial infections. Arsphenamine was prepared as part of a campaign to synthesize a series of such compounds, and found to exhibit partially selective toxicity. Arsphenamine proved to be the first effective treatment for syphilis, a disease which prior to that time was incurable and led inexorably to severe skin ulceration, neurological damage, and death.[citation needed]

Bacterial infections could be treated with medicines containing what kind of dye?
Answer:
arsenic