Input: Article: The British high-definition TV service started trials in August 1936 and a regular service on 2 November 1936 using both the (mechanical) Baird 240 line sequential scan (later to be inaccurately rechristened 'progressive') and the (electronic) Marconi-EMI 405 line interlaced systems. The Baird system was discontinued in February 1937. In 1938 France followed with their own 441-line system, variants of which were also used by a number of other countries. The US NTSC 525-line system joined in 1941. In 1949 France introduced an even higher-resolution standard at 819 lines, a system that should have been high definition even by today's standards, but was monochrome only and the technical limitations of the time prevented it from achieving the definition of which it should have been capable. All of these systems used interlacing and a 4:3 aspect ratio except the 240-line system which was progressive (actually described at the time by the technically correct term "sequential") and the 405-line system which started as 5:4 and later changed to 4:3. The 405-line system adopted the (at that time) revolutionary idea of interlaced scanning to overcome the flicker problem of the 240-line with its 25 Hz frame rate. The 240-line system could have doubled its frame rate but this would have meant that the transmitted signal would have doubled in bandwidth, an unacceptable option as the video baseband bandwidth was required to be not more than 3 MHz.

Now answer this question: When was the Baird system discontinued?

Output: February 1937

Input: Article: On April 19, 1995, the Alfred P. Murrah Federal Building was destroyed by a fertilizer bomb manufactured and detonated by Timothy McVeigh. The blast and catastrophic collapse killed 168 people and injured over 680. The blast shockwave destroyed or damaged 324 buildings within a 340-meter radius, destroyed or burned 86 cars, and shattered glass in 258 nearby buildings, causing at least an estimated $652 million worth of damage. The main suspect- Timothy McVeigh, was executed by lethal injection on June 11, 2001. It was the deadliest single domestic terrorist attack in US history, prior to 9/11.

Now answer this question: When was Timothy McVeigh Executed?

Output: June 11, 2001

Input: Article: 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.

Now answer this question: How many states violate the religious test clause with language somewhere in their official policies?

Output:
Seven