Input: Article: Philadelphia is also a major hub for Greyhound Lines, which operates 24-hour service to points east of the Mississippi River. Most of Greyhound's services in Philadelphia operate to/from the Philadelphia Greyhound Terminal, located at 1001 Filbert Street in Center City Philadelphia. In 2006, the Philadelphia Greyhound Terminal was the second busiest Greyhound terminal in the United States, after the Port Authority Bus Terminal in New York. Besides Greyhound, six other bus operators provide service to the Center City Greyhound terminal: Bieber Tourways, Capitol Trailways, Martz Trailways, Peter Pan Bus Lines, Susquehanna Trailways, and the bus division for New Jersey Transit. Other services include Megabus and Bolt Bus.

Now answer this question: What bus line uses the city as a hub?

Output: Greyhound Lines

Input: Article: While Knickebein was used by German crews en masse, X-Gerät use was limited to specially trained pathfinder crews. Special receivers were mounted in He 111s, with a radio mast on the bomber's fuselage. The system worked on a higher frequency (66–77 MHz, compared to Knickebein's 30–33 MHz). Transmitters on the ground sent pulses at a rate of 180 per minute. X-Gerät received and analysed the pulses, giving the pilot both visual and aural "on course" signals. Three beams intersected the beam along the He 111's flight path. The first cross-beam acted as a warning for the bomb-aimer to start the bombing-clock which he would activate only when the second cross-beam was reached. When the third cross-beam was reached the bomb aimer activated a third trigger, which stopped the first hand of the equipment's clock, with the second hand continuing. When the second hand re-aligned with the first, the bombs were released. The clock's timing mechanism was co-ordinated with the distances of the intersecting beams from the target so the target was directly below when the bomb release occurred.

Now answer this question: While Knickebein was used my most German crews who used the X-Gerat system?

Output: specially trained pathfinder crews

Input: Article: Meanwhile, Begin's government provided incentives for Israelis to settle in the occupied West Bank, increasing friction with the Palestinians in that area. The Basic Law: Jerusalem, the Capital of Israel, passed in 1980, was believed by some to reaffirm Israel's 1967 annexation of Jerusalem by government decree, and reignited international controversy over the status of the city. No Israeli legislation has defined the territory of Israel and no act specifically included East Jerusalem therein. The position of the majority of UN member states is reflected in numerous resolutions declaring that actions taken by Israel to settle its citizens in the West Bank, and impose its laws and administration on East Jerusalem, are illegal and have no validity. In 1981 Israel annexed the Golan Heights, although annexation was not recognized internationally.

Now answer this question: When did Israel annex the Golan Heights?

Output:
1981