Input: Article: The compression works by reducing the accuracy of certain parts of a sound that are considered to be beyond the auditory resolution ability of most people. This method is commonly referred to as perceptual coding. It uses psychoacoustic models to discard or reduce precision of components less audible to human hearing, and then records the remaining information in an efficient manner.

Now answer this question: These models ensure that the precision is reduced for the components that are what to human hearing?

Output: less audible

Input: Article: Firstly, flanking the open reading frame, all genes contain a regulatory sequence that is required for their expression. In order to be expressed, genes require a promoter sequence. The promoter is recognized and bound by transcription factors and RNA polymerase to initiate transcription.:7.1 A gene can have more than one promoter, resulting in messenger RNAs (mRNA) that differ in how far they extend in the 5' end. Promoter regions have a consensus sequence, however highly transcribed genes have "strong" promoter sequences that bind the transcription machinery well, whereas others have "weak" promoters that bind poorly and initiate transcription less frequently.:7.2 Eukaryotic promoter regions are much more complex and difficult to identify than prokaryotic promoters.:7.3

Now answer this question: What results when genes have more than one promoter?

Output: messenger RNAs (mRNA) that differ in how far they extend in the 5' end

Input: Article: Forbes magazine began reporting on Beyonce's earnings in 2008, calculating that the $80 million earned between June 2007 to June 2008, for her music, tour, films and clothing line made her the world's best-paid music personality at the time, above Madonna and Celine Dion. They placed her fourth on the Celebrity 100 list in 2009 and ninth on the "Most Powerful Women in the World" list in 2010. The following year, Forbes placed her eighth on the "Best-Paid Celebrities Under 30" list, having earned $35 million in the past year for her clothing line and endorsement deals. In 2012, Forbes placed Beyonce at number 16 on the Celebrity 100 list, twelve places lower than three years ago yet still having earned $40 million in the past year for her album 4, clothing line and endorsement deals. In the same year, Beyonce and Jay Z placed at number one on the "World's Highest-Paid Celebrity Couples", for collectively earning $78 million. The couple made it into the previous year's Guinness World Records as the "highest-earning power couple" for collectively earning $122 million in 2009. For the years 2009 to 2011, Beyonce earned an average of $70 million per year, and earned $40 million in 2012. In 2013, Beyonce's endorsements of Pepsi and H&M made her and Jay Z the world's first billion dollar couple in the music industry. That year, Beyonce was published as the fourth most-powerful celebrity in the Forbes rankings. MTV estimated that by the end of 2014, Beyonce would become the highest-paid black musician in history; she succeeded to do so in April 2014. In June 2014, Beyonce ranked at #1 on the Forbes Celebrity 100 list, earning an estimated $115 million throughout June 2013 June 2014. This in turn was the first time she had topped the Celebrity 100 list as well as being her highest yearly earnings to date. As of May 2015, her net worth is estimated to be $250 million.

Now answer this question: Between 2008 and 2009, which entertainers did Beyonce beat in earnings?

Output:
Madonna and Celine Dion