Input: Article: The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of engineers to design a new digital audio disc. After a year of experimentation and discussion, the Red Book CD-DA standard was published in 1980. After their commercial release in 1982, compact discs and their players were extremely popular. Despite costing up to $1,000, over 400,000 CD players were sold in the United States between 1983 and 1984. The success of the compact disc has been credited to the cooperation between Philips and Sony, who came together to agree upon and develop compatible hardware. The unified design of the compact disc allowed consumers to purchase any disc or player from any company, and allowed the CD to dominate the at-home music market unchallenged.

Now answer this question: How lond did the creation of Red Book CD-DA standard take?

Output: a year

Input: Article: The Yale Provost's Office has launched several women into prominent university presidencies. In 1977 Hanna Holborn Gray was appointed acting President of Yale from this position, and went on to become President of the University of Chicago, the first woman to be full president of a major university. In 1994 Yale Provost Judith Rodin became the first female president of an Ivy League institution at the University of Pennsylvania. In 2002 Provost Alison Richard became the Vice Chancellor of the University of Cambridge. In 2004, Provost Susan Hockfield became the President of the Massachusetts Institute of Technology. In 2007 Deputy Provost Kim Bottomly was named President of Wellesley College. In 2003, the Dean of the Divinity School, Rebecca Chopp, was appointed president of Colgate University and now heads Swarthmore College.

Now answer this question: Who was appointed acting President of Yale in 1977?

Output: Hanna Holborn Gray

Input: Article: In Majorcan, unstressed vowels reduce to four: /a e / follow the Eastern Catalan reduction pattern; however /o / reduce to [o], with /u/ remaining distinct, as in Western Catalan.

Now answer this question: What reduction pattern do some vowels follow?

Output:
Eastern Catalan