Problem: Please answer a question about the following article about Antenna (radio):
An antenna (plural antennae or antennas), or aerial, is an electrical device which converts electric power into radio waves, and vice versa. It is usually used with a radio transmitter or radio receiver. In transmission, a radio transmitter supplies an electric current oscillating at radio frequency (i.e. a high frequency alternating current (AC)) to the antenna's terminals, and the antenna radiates the energy from the current as electromagnetic waves (radio waves). In reception, an antenna intercepts some of the power of an electromagnetic wave in order to produce a tiny voltage at its terminals, that is applied to a receiver to be amplified.
What device is often used in conjuntion with the antenna?
A: radio transmitter or radio receiver
Problem: Please answer a question about the following article about Time:
In Book 11 of his Confessions, St. Augustine of Hippo ruminates on the nature of time, asking, "What then is time? If no one asks me, I know: if I wish to explain it to one that asketh, I know not." He begins to define time by what it is not rather than what it is, an approach similar to that taken in other negative definitions. However, Augustine ends up calling time a "distention" of the mind (Confessions 11.26) by which we simultaneously grasp the past in memory, the present by attention, and the future by expectation.
Who commented on the nature of time in Book 11 of his confessions?
A: St. Augustine of Hippo
Problem: Please answer a question about the following article about Portugal:
The governors of the taifas each proclaimed themselves Emir of their provinces and established diplomatic relations with the Christian kingdoms of the north. Most of Portugal fell into the hands of the Taifa of Badajoz of the Aftasid Dynasty, and after a short spell of an ephemeral Taifa of Lisbon in 1022, fell under the dominion of the Taifa of Seville of the Abbadids poets. The Taifa period ended with the conquest of the Almoravids who came from Morocco in 1086 winning a decisive victory at the Battle of Sagrajas, followed a century later in 1147, after the second period of Taifa, by the Almohads, also from Marrakesh.
Which battle took place in 1147?
A: Battle of Sagrajas
Problem: Please answer a question about the following article about London:
London is the seat of the Government of the United Kingdom. Many government departments are based close to the Palace of Westminster, particularly along Whitehall, including the Prime Minister's residence at 10 Downing Street. The British Parliament is often referred to as the "Mother of Parliaments" (although this sobriquet was first applied to England itself by John Bright) because it has been the model for most other parliamentary systems. There are 73 Members of Parliament (MPs) from London, who correspond to local parliamentary constituencies in the national Parliament. As of May 2015, 45 are from the Labour Party, 27 are Conservatives, and one is a Liberal Democrat.
What is the Prime Minister of the UK's official residence?
A:
10 Downing Street