Problem:Context: The ability to block a measure through extended debate was an inadvertent side effect of an 1806 rule change, and was infrequently used during much of the 19th and 20th centuries. In 1970, the Senate adopted a "two-track" procedure to prevent filibusters from stopping all other Senate business. The minority then felt politically safer in threatening filibusters more regularly, which became normalized over time to the point that 60 votes are now required to end debate on nearly every controversial legislative item. As a result, the modern "filibuster" rarely manifests as an extended floor debate. Instead, "the contemporary Senate has morphed into a 60-vote institution -- the new normal for approving measures or matters -- a fundamental transformation from earlier years." This effective supermajority requirement has had very significant policy and political impacts on Congress and the other branches of government.

Question: when did the filibuster start in the us senate?
Solution:OK... The relevant sentence in the passage is: The ability to block a measure through extended debate was an inadvertent side effect of an 1806 rule change, and was infrequently used during much of the 19th and 20th centuries.
1806.

Student A:"I'm Still Standing" is a song by British rock musician Elton John, from his Platinum-certified 1983 album, Too Low for Zero.

Based on this passage, who sang the song i'm still standing?
Student B:OK... To answer this question, we should know that: "I'm Still Standing" is a song by British rock musician Elton John, from his Platinum-certified 1983 album, Too Low for Zero.
Elton John.

Problem:Context: A pregnancy test attempts to determine whether or not a woman is pregnant. Indicative markers are found in blood and urine, and pregnancy tests require sampling one of these substances. The first of these markers to be discovered, human chorionic gonadotropin (hCG), was discovered in 1930 to be produced by the syncytiotrophoblast cells of the fertilised ova (eggs). While hCG is a reliable marker of pregnancy, it can not be detected until after implantation; this results in false negatives if the test is performed during the very early stages of pregnancy. HCG can be detected via blood 8 days after fertilization of the egg, and in the urine 10 days after.

Question: when can hcg be detected by pregnancy tests?
Solution:OK... To answer the question, consider the following: HCG can be detected via blood 8 days after fertilization of the egg, and in the urine 10 days after.
via blood 8 days after fertilization of the egg , and in the urine 10 days after.

Student A:Passage: There are one hundred and eight cards in a deck:

Question: Based on this passage, how many cards are in a deck of phase 10?
Student B:OK... The important part for answering this question is: There are one hundred and eight cards in a deck:
one hundred and eight.

Problem:Passage: An oxbow lake is a U-shaped lake that forms when a wide meander from the main stem of a river is cut off, creating a free-standing body of water. This landform is so named for its distinctive curved shape, resembling the bow pin of an oxbow. In Australia, an oxbow lake is known as a billabong, from the indigenous Wiradjuri language. In south Texas, oxbows left by the Rio Grande are called resacas.'

Question: Based on this passage, in which course of the river are oxbow lakes formed?
Solution:OK... To answer the above question, the relevant sentence is: An oxbow lake is a U-shaped lake that forms when a wide meander from the main stem of a river is cut off, creating a free-standing body of water.
when a wide meander from the main stem of a river is cut off , creating a free - standing body of water.

Problem:Passage: The current House Speaker is Congressman Paul Ryan from Wisconsin. He was elected to the office on October 29, 2015, and is the 54th person to serve as Speaker.

Question: Based on this passage, who is the speaker of the house in the house of representatives?
Solution:
OK... To answer the above question, the relevant sentence is: The current House Speaker is Congressman Paul Ryan from Wisconsin.
Paul Ryan.