You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.

Example Input: According to the theory of relativity, no information can travel faster than the speed of light in vacuum, but this does not mean that the refractive index cannot be lower than 1. The refractive index measures the phase velocity of light, which does not carry information. The phase velocity is the speed at which the crests of the wave move and can be faster than the speed of light in vacuum, and thereby give a refractive index below 1. This can occur close to resonance frequencies, for absorbing media, in plasmas, and for X-rays. In the X-ray regime the refractive indices are lower than but very close to 1 (exceptions close to some resonance frequencies). As an example, water has a refractive index of 6999999999740000000♠0.99999974 = 1 − 6993260000000000000♠2.6×10 for X-ray radiation at a photon energy of 6985480652946099999♠30 keV (0.04 nm wavelength).
Example Output: can a refractive index be less than 1?

Example Input: Leaving their designated places before the ball leaves the shooter's hands, or interfering with the ball, are violations. In addition, the shooter must release the ball within five seconds (ten seconds in the United States) and must not step on or over the free throw line until the ball touches the hoop. Players are, however, permitted to jump while attempting the free throw, provided they do not leave the designated area at any point. A violation by the shooter cancels the free throw; a violation by the defensive team results in a substitute free throw if the shooter missed; a violation by the offensive team or a shot that completely misses the hoop results in the loss of possession to the defensive team (only if it is on the last free throw).
Example Output: can you step over the free throw line?

Example Input: National identity cards are issued to their citizens by the governments of all European Union member states except Denmark, Ireland, and the United Kingdom, and also by Liechtenstein and Switzerland (the latter not formally part of the EEA). Citizens holding a national identity card, which states EEA or Swiss citizenship, can not only use it as an identity document within their home country, but also as a travel document to exercise the right of free movement in the EEA and Switzerland. Identity cards that do not state EEA or Swiss citizenship, including national identity cards issued to residents who are not citizens, are not valid as a travel document within the EEA and Switzerland.
Example Output:
can you travel in eu with id card?