Student A:Context: During fertilization, a sperm must first fuse with the plasma membrane and then penetrate the female egg in order to fertilize it. Fusing to the egg usually causes little problem, whereas penetrating through the egg's hard shell or extracellular matrix can present more of a problem to the sperm. Therefore, sperm cells go through a process known as the acrosome reaction which is the reaction that occurs in the acrosome of the sperm as it approaches the egg. The acrosome is a cap-like structure over the anterior half of the sperm's head.

Question: when does the acrosome reaction occur in sperm?
Student B:OK... To answer the question, consider the following: Therefore, sperm cells go through a process known as the acrosome reaction which is the reaction that occurs in the acrosome of the sperm as it approaches the egg.
as it approaches the egg.

Student A:The first film, Fifty Shades of Grey, was released on February 13, 2015, while the second, Fifty Shades Darker, was released on February 10, 2017. Fifty Shades Freed, the third film, was released on February 9, 2018. Worldwide, the series has grossed over $1.320 billion, making it the fourth highest-grossing R-rated franchise of all-time.

What is the sequel of fifty shades of grey?
Student B:OK... The relevant information to answer the above question is: The first film, Fifty Shades of Grey, was released on February 13, 2015, while the second, Fifty Shades Darker, was released on February 10, 2017.
Fifty Shades Darker.

Student A:The song was originally a country music single by singer Wynn Stewart. Although Stewart had previously hit the Top 40 on the Billboard US country chart with songs such as "Wishful Thinking" in 1960, "It's Such a Pretty World Today" was Stewart's highest charting hit, peaking at No. 1 on the country music chart for two weeks in the late spring of 1967. It was released as a single from his album of the same name that year.

Who sang the song it's such a pretty world today?
Student B:OK... To answer the question, consider the following: The song was originally a country music single by singer Wynn Stewart.
singer Wynn Stewart.

Student A:Context: In the United States, Medicare is a single-payer, national social insurance program administered by the U.S. federal government since 1966, currently using about 30 -- 50 private insurance companies across the United States under contract for administration. United States Medicare is funded by a payroll tax, premiums and surtaxes from beneficiaries, and general revenue. It provides health insurance for Americans aged 65 and older who have worked and paid into the system through the payroll tax. It also provides health insurance to younger people with some disability status as determined by the Social Security Administration, as well as people with end stage renal disease and amyotrophic lateral sclerosis.

Question: when did medicare begin in the united states?
Student B:
OK... To answer this question, we should know that: In the United States, Medicare is a single-payer, national social insurance program administered by the U.S. federal government since 1966, currently using about 30 -- 50 private insurance companies across the United States under contract for administration.
1966.