In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

How would I know if I could get Chopin to teach me to play the flute?, Context: In London Chopin took lodgings at Dover Street, where the firm of Broadwood provided him with a grand piano. At his first engagement, on 15 May at Stafford House, the audience included Queen Victoria and Prince Albert. The Prince, who was himself a talented musician, moved close to the keyboard to view Chopin's technique. Broadwood also arranged concerts for him; among those attending were Thackeray and the singer Jenny Lind. Chopin was also sought after for piano lessons, for which he charged the high fee of one guinea (£1.05 in present British currency) per hour, and for private recitals for which the fee was 20 guineas. At a concert on 7 July he shared the platform with Viardot, who sang arrangements of some of his mazurkas to Spanish texts.
Chopin was also sought after for piano lessons

Although we think of Arabic languages as being Middle Eastern, what are they often referred to as in studies?, Context: A large percentage of experts on the modern Middle East began their training in university departments named for the Near East. Similarly the journals associated with these fields of expertise include the words Near East or Near Eastern. The meaning of Near East in these numerous establishments and publications is Middle East. Expertise on the modern Middle East is almost never mixed or confused with studies of the Ancient Near East, although often "Ancient Near East" is abbreviated to "Near East" without any implication of modern times. For example, "Near Eastern Languages" in the ancient sense includes such languages as Sumerian and Akkadian. In the modern sense, it is likely to mean any or all of the Arabic languages.
Near Eastern Languages

What hormones decrease during the slow-wave-sleep stage?, Context: In addition to the negative consequences of sleep deprivation, sleep and the intertwined circadian system have been shown to have strong regulatory effects on immunological functions affecting both the innate and the adaptive immunity. First, during the early slow-wave-sleep stage, a sudden drop in blood levels of cortisol, epinephrine, and norepinephrine induce increased blood levels of the hormones leptin, pituitary growth hormone, and prolactin. These signals induce a pro-inflammatory state through the production of the pro-inflammatory cytokines interleukin-1, interleukin-12, TNF-alpha and IFN-gamma. These cytokines then stimulate immune functions such as immune cells activation, proliferation, and differentiation. It is during this time that undifferentiated, or less differentiated, like naïve and central memory T cells, peak (i.e. during a time of a slowly evolving adaptive immune response). In addition to these effects, the milieu of hormones produced at this time (leptin, pituitary growth hormone, and prolactin) support the interactions between APCs and T-cells, a shift of the Th1/Th2 cytokine balance towards one that supports Th1, an increase in overall Th cell proliferation, and naïve T cell migration to lymph nodes. This milieu is also thought to support the formation of long-lasting immune memory through the initiation of Th1 immune responses.

cortisol, epinephrine, and norepinephrine