Q: Context: The first Zimbabwean dollar was introduced in 1980 and replaced the Rhodesian dollar at par. The initial ISO 4217 code was ZWD. At the time of its introduction, the Zimbabwean dollar was worth more than the US dollar in the official exchange market, with 1 ZWD = 1.47 USD, although this did not reflect the actual purchasing power it held. As a result, in both the official and parallel markets, the currency's value eroded rapidly over the years, and by July 2006, the parallel market value of the Zimbabwean dollar fell to Z $1,000,000 = GB 1.

Question: when did the currencies of zimbabwe first come in circulation?
A: 1980. How to explain the answer? The relevant sentence in the passage is: The first Zimbabwean dollar was introduced in 1980 and replaced the Rhodesian dollar at par.

Q: "It All Started with a Beer" is a song recorded by American country music artist Frankie Ballard. It was released in November 2015 as the first single from Ballard's third studio album, El Rio. The song was written by Jaren Johnston, Neil Mason and Jeremy Stover.

Who sings it all started with a beer?
A: Frankie Ballard. How to explain the answer? To answer the question, consider the following: "It All Started with a Beer" is a song recorded by American country music artist Frankie Ballard.

Q: Later Sachs added a fifth category, electrophones, such as theremins, which produce sound by electronic means. Modern synthesizers and electronic instruments fall in this category. Within each category are many subgroups. The system has been criticised and revised over the years, but remains widely used by ethnomusicologists and organologists.

Answer this question based on the passage: what category of instruments do synthesizers fall in?
A: electrophones. How to explain the answer? The relevant information is: Modern synthesizers and electronic instruments fall in this category.

Q: Context: Law & Order: Special Victims Unit, an American police procedural television series, premiered on September 20, 1999 on NBC. Created by Dick Wolf, it is the first spin-off of Law & Order and follows the detectives of a fictionalized version of the New York City Police Department's Special Victims Unit, which investigates sexually based offenses. SVU originally aired on Monday nights at 9pm / 8c EST, but it was moved to Friday nights at 10pm / 9c after the ninth episode. Showrunner Robert Palm felt too disturbed by the subject matter and left after the season's conclusion.

Question: when did the first episode of law and order svu air?
A:
September 20 , 1999. How to explain the answer? To answer this question, we should know that: Law & Order: Special Victims Unit, an American police procedural television series, premiered on September 20, 1999 on NBC.