Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Since the formal adoption of digital video broadcasting's (DVB) widescreen HDTV transmission modes in the early 2000s; the 525-line NTSC (and PAL-M) systems, as well as the European 625-line PAL and SECAM systems, are now regarded as standard definition television systems.
In addition to the NTSC system, what 525-line system is considered a standard definition television system?
A: PAL-M

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Snapshots usually become available more than six months after they are archived or, in some cases, even later; it can take twenty-four months or longer. The frequency of snapshots is variable, so not all tracked web site updates are recorded. Sometimes there are intervals of several weeks or years between snapshots.
How many months can it take for intervals to become available?
A: unanswerable

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The "religious test" clause has been interpreted to cover both elected officials and appointed ones, career civil servants as well as political appointees. Religious beliefs or the lack of them have therefore not been permissible tests or qualifications with regard to federal employees since the ratification of the Constitution. Seven states, however, have language included in their Bill of Rights, Declaration of Rights, or in the body of their constitutions that require state office-holders to have particular religious beliefs, though some of these have been successfully challenged in court. These states are Texas, Massachusetts, Maryland, North Carolina, Pennsylvania, South Carolina, and Tennessee.
How many states violate the religious test clause without language somewhere in their official policies?
A: unanswerable

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The 'OtherOS' functionality was not present in the updated PS Slim models, and the feature was subsequently removed from previous versions of the PS3 as part of the machine's firmware update version 3.21 which was released on April 1, 2010; Sony cited security concerns as the rationale. The firmware update 3.21 was mandatory for access to the PlayStation Network. The removal caused some controversy; as the update removed officially advertised features from already sold products, and gave rise to several class action lawsuits aimed at making Sony return the feature or provide compensation.
What legal action did some happy OtherOS users take against Sony?
A:
unanswerable