instruction:
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.
question:
passage: This is a record of Canada's results at the FIFA World Cup. Canada has appeared in the FIFA World Cup on one occasion, which was in 1986.
 question: has canada ever had a team in the world cup?
answer:
Yes


question:
passage: In the mid to late 1990s many higher-end AV receivers included the demodulator circuit specifically for the LaserDisc players RF modulated Dolby Digital AC-3 signal. By the late 1990s with LaserDisc players and disc sales declining due to DVD's growing popularity the AV receiver manufacturers removed the demodulator circuit. Although DVD players were capable of playing Dolby Digital tracks, the signals out of DVD players were not in a modulated form and not compatible with the inputs designed for LaserDisc AC-3. Outboard demodulators were available for a period that convert the AC-3 signal to standard Dolby Digital signal that was compatible with the standard Dolby Digital/PCM inputs on capable AV receivers. Another type marketed by Onkyo and others converted the RF AC-3 signal to 6-channel analog audio.
 question: will a laserdisc play in a dvd player?
answer:
No


question:
passage: In mathematics, the power set (or powerset) of any set S is the set of all subsets of S, including the empty set and S itself, variously denoted as P(S), P(S), ℘(S) (using the ``Weierstrass p''), P(S), P(S), or, identifying the powerset of S with the set of all functions from S to a given set of two elements, 2. In axiomatic set theory (as developed, for example, in the ZFC axioms), the existence of the power set of any set is postulated by the axiom of power set.
 question: is a set an element of its power set?
answer:

Yes