In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

[Q]: passage: In mathematics, a polynomial is an expression consisting of variables (also called indeterminates) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables. An example of a polynomial of a single indeterminate x is x 4x + 7. An example in three variables is x + 2xyz yz + 1.
question: does a polynomial have to have a variable?
[A]: Yes

[Q]: passage: The series is co-produced by Nickelodeon Productions and Nickelodeon Animation Studio. Dora the Explorer is one of the longest-running shows of Nick Jr. During the sixth season, the show became the Nick Jr. series with the most episodes, surpassing Blue's Clues with 143 episodes, having 144 after it had completed broadcasting on television. It ended on June 5, 2014 after 8 seasons and 172 episodes.
question: do they still make new episodes of dora?
[A]: No

[Q]: passage: Nationals of Taiwan holding passports with National ID number can also apply for the ETA but solely through one of the approved travel agents in Taiwan or an Australian visa office outside Australia. Citizens of Andorra, Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Liechtenstein, Luxembourg, Malta, Monaco, Netherlands, Norway, Portugal, San Marino, Spain, Sweden, Switzerland, the United Kingdom (British Citizens and British Nationals (Overseas) only) and the Vatican City may also apply for the ETA instead of eVisitor but solely through a travel agent, airline, specialist service provider or an Australian visa office outside Australia.
question: do british citizens need an eta for australia?
[A]:
Yes