Input: Sumer
The almost constant wars among the Sumerian city-states for 2000 years helped to develop the military technology and techniques of Sumer to a high level. The first war recorded in any detail was between Lagash and Umma in c. 2525 BC on a stele called the Stele of the Vultures. It shows the king of Lagash leading a Sumerian army consisting mostly of infantry. The infantrymen carried spears, wore copper helmets, and carried rectangular shields. The spearmen are shown arranged in what resembles the phalanx formation, which requires training and discipline; this implies that the Sumerians may have made use of professional soldiers.

What did the king of Lagash's army mostly consist of?
Output: infantry

Input: Party leaders of the United States House of Representatives
The roles and responsibilities of the minority leader are not well-defined. To a large extent, the functions of the minority leader are defined by tradition and custom. A minority leader from 1931 to 1939, Representative Bertrand Snell, R-N.Y., provided this "job description": "He is spokesman for his party and enunciates its policies. He is required to be alert and vigilant in defense of the minority's rights. It is his function and duty to criticize constructively the policies and programs of the majority, and to this end employ parliamentary tactics and give close attention to all proposed legislation."

What congressman largely specified the job description of minority leader?
Output: Representative Bertrand Snell

Input: Plymouth
The A38 dual-carriageway runs from east to west across the north of the city. Within the city it is designated as 'The Parkway' and represents the boundary between the urban parts of the city and the generally more recent suburban areas. Heading east, it connects Plymouth to the M5 motorway about 40 miles (65 km) away near Exeter; and heading west it connects Cornwall and Devon via the Tamar Bridge. Regular bus services are provided by Plymouth Citybus, First South West and Target Travel. There are three Park and ride services located at Milehouse, Coypool (Plympton) and George Junction (Plymouth City Airport), which are operated by First South West.

Who operates Milehouse park and ride?
Output: First South West

Input: Anti-aircraft warfare
The British adopted "effective ceiling", meaning the altitude at which a gun could deliver a series of shells against a moving target; this could be constrained by maximum fuse running time as well as the gun's capability. By the late 1930s the British definition was "that height at which a directly approaching target at 400 mph (=643.6 km/h) can be engaged for 20 seconds before the gun reaches 70 degrees elevation". However, effective ceiling for heavy AA guns was affected by non-ballistic factors:

What affected the effective ceiling for heavy AA guns?
Output:
non-ballistic factors