Question: The rotation curve of a disc galaxy (also called a velocity curve) is a plot of the orbital speeds of visible stars or gas in that galaxy versus their radial distance from that galaxy's centre. It is typically rendered graphically as a plot, and the data observed from each side of a spiral galaxy are generally asymmetric, so that data from each side are averaged to create the curve. A significant discrepancy exists between the experimental curves observed, and a curve derived from theory. The theory of dark matter was postulated to account for the variance.

Answer this question: what is the rotation curve of a spiral galaxy?
Answer: To answer the above question, the relevant sentence is: The rotation curve of a disc galaxy (also called a velocity curve) is a plot of the orbital speeds of visible stars or gas in that galaxy versus their radial distance from that galaxy's centre. The answer is a plot of the orbital speeds of visible stars or gas in that galaxy versus their radial distance from that galaxy 's centre.

Question: Context: This is a list of the 565 municipalities in the U.S. state of New Jersey, ordered by population. There are five types of municipality in the state -- boroughs (250), cities (52), towns (15), townships (245), and villages (4). New Jersey, the fourth-smallest state, covers 8,722 square miles (22,590 km), meaning the average land size of a municipality in the state is about 15 square miles (39 km) -- but note the wide range of actual sizes in the map at right.

Question: how many cities are there in new jersey?
Answer: To answer this question, we should know that: There are five types of municipality in the state -- boroughs (250), cities (52), towns (15), townships (245), and villages (4). The answer is 52.

Question: The album, largely based on material from Disney's 1991 animated version, features songs and instrumental score composed by Alan Menken with lyrics by Howard Ashman and three new songs composed by Alan Menken with lyrics by Tim Rice. The songs feature vocal performances by the film's ensemble cast including Emma Watson, Dan Stevens, Luke Evans, Kevin Kline, Josh Gad, Ewan McGregor, Stanley Tucci, Audra McDonald, Gugu Mbatha-Raw, Nathan Mack, Ian McKellen, and Emma Thompson.

Answer this question based on the passage: who wrote the songs for beauty and the beast 2017?
Answer: This is the relevant information: The album, largely based on material from Disney's 1991 animated version, features songs and instrumental score composed by Alan Menken with lyrics by Howard Ashman and three new songs composed by Alan Menken with lyrics by Tim Rice. The answer is Alan Menken with lyrics by Howard Ashman and three new songs composed by Alan Menken with lyrics by Tim Rice.

Question: In the summer of 1963, 17-year-old Frances "Baby" Houseman is vacationing with her family at Kellerman's, a resort in the Catskill Mountains. Baby, the younger of two daughters, plans to study economics in underdeveloped countries and enter the Peace Corps. Her father, Jake, is the doctor and friend of Max Kellerman, the resort proprietor. Baby develops a crush on the resort's dance instructor, Johnny Castle, and meets his cousin, Billy. The staff holds secret after-hours parties in their quarters, and Baby is surprised by their "dirty dancing". Intrigued, Baby receives a brief, impromptu dance lesson from Johnny.

Answer this question based on the passage: where is dirty dancing supposed to take place?
Answer:
The important part for answering this question is: In the summer of 1963, 17-year-old Frances "Baby" Houseman is vacationing with her family at Kellerman's, a resort in the Catskill Mountains. The answer is Kellerman 's , a resort in the Catskill Mountains.