Problem: Found the following article online, use it to answer the question: What is the name of the group that contains 39 structures arranged around plazas? The core of the site covers about 6.5 square kilometres (2.5 sq mi) and includes remains of some 70 monumental structures positioned around a dozen plazas. Takalik Abaj has 2 ballcourts and over 239 known stone monuments, including impressive stelae and altars. The granite used to make monuments in Olmec and early Maya styles is much different from the soft limestone used in the Peten cities. The site is also noted for its hydraulic systems, including a temazcal or sauna bath with a subterranean drainage, and Preclassic tombs found in excavations from the late 1990s onwards by Drs. Marion Popenoe de Hatch, Christa Schieber de Lavarreda and Miguel Orrego, from the Ministerio de Cultura y Deportes. The structures at Takalik Abaj are spread among four groups; the Central, North and West Groups are clustered together but the South Group is located about 5 km (3.1 mi) to the south. The site is naturally defensible, being bordered by steep ravines. The site is spread over a series of nine terraces, which vary in width from 140 to 220 metres (460 to 720 ft) and have faces varying in height from 4.6 to 9.4 metres (15 to 31 ft). These terraces are not uniformly oriented, instead the direction of their retaining faces depends upon the lie of the local terrain. The three main terraces supporting the city are artificial, with over 10 metres (33 ft) of fill being used in places.When Takalik Abaj was at its greatest extent, major architecture in the city covered an area of approximately 2 by 4 kilometres (1.2 by 2.5 mi), although the area occupied by residential construction has not been determined. The Central Group occupies Terraces 1 to 5, which were artificially levelled. The group contains 39 structures arranged around plazas that are open on the north and south sides. The Central Group was first occupied in the Middle Preclassic and contains a concentration of more than 100 stone monuments. The West Group consists of 21 structures on Terrace 6, which was also artificially levelled. The structures are arranged around...

A: The Central Group
Problem: Given the question: Found the following article online, use it to answer the question: What is the first name of the person who relayed another statement to Oan via Mustapha Karkouti? Oan, angered by the BBC's incorrect reporting of his demands the previous evening, contacted the police negotiators shortly after 06:00 and accused the authorities of deceiving him. He demanded to speak with an Arab ambassador, but the negotiator on duty claimed that talks were still being arranged by the Foreign Office. Recognising the delaying tactic, Oan told the negotiator that the British hostages would be the last to be released because of the British authorities' deceit. He added that a hostage would be killed unless Tony Crabb was brought back to the embassy. Crabb did not arrive at the embassy until 15:30, nearly ten hours after Oan demanded his presence, to the frustration of both Oan and Sim Harris. Oan then relayed another statement to Crabb via Mustapha Karkouti, a journalist also being held hostage in the embassy. The police guaranteed that the statement would be broadcast on the BBC's next news bulletin, in exchange for the release of two hostages. The hostages decided amongst themselves that the two to be released would be Hiyech Kanji and Ali-Guil Ghanzafar; the former as she was pregnant and the latter for no other reason than his loud snoring, which kept the other hostages awake at night and irritated the terrorists.Later in the evening, at approximately 23:00, an SAS team reconnoitred the roof of the embassy. They discovered a skylight, and succeeded in unlocking it for potential use as an access point, should they later be required to storm the building. They also attached ropes to the chimneys to allow soldiers to abseil down the building and gain access through the windows if necessary.
++++++++++++++++++++++++++++++++
The answer is:
Tony
[Q]: Found the following article online, use it to answer the question: What is the last name of the person who was succeeded by William Barber? James Barton Longacre (August 11, 1794 January 1, 1869) was an American portraitist and engraver, and the fourth Chief Engraver of the United States Mint from 1844 until his death. Longacre is best known for designing the Indian Head cent, which entered commerce in 1859, and for the designs of the Shield nickel, Flying Eagle cent and other coins of the mid-19th century. Longacre was born in Delaware County, Pennsylvania, in 1794. He ran away to Philadelphia at age 12, where he became an apprentice in a bookstore. His artistic talent developed and he was released to apprentice in an engraving firm. He struck out on his own in 1819, making a name providing illustrations for popular biographical books. He portrayed the leading men of his day; support from some of them, such as South Carolina Senator John C. Calhoun, led to his appointment as chief engraver after the death of Christian Gobrecht in 1844. In Longacre's first years as a chief engraver, the Philadelphia Mint was dominated by Mint Director Robert M. Patterson and Chief Coiner Franklin Peale. Conflict between Longacre and the two men developed after Congress ordered a new gold dollar and double eagle, with both to be designed by Longacre. Peale and Patterson nearly had Longacre fired, but the chief engraver was able to convince Treasury Secretary William M. Meredith that he should be retained. Both Patterson and Peale left the Mint in the early 1850s, ending the conflict. In 1856, Longacre designed the Flying Eagle cent. When that design proved difficult to strike, Longacre was responsible for the replacement, the Indian Head cent, issued beginning in 1859. Other coins designed by Longacre include the silver and nickel three-cent pieces, the Shield nickel, the pattern Washington nickel, and the two-cent piece. In 18661867, he redesigned the coins of Chile. Longacre died suddenly on New Year's Day 1869; he was succeeded by William Barber. Longacre's coins are generally well-regarded today, although they have been criticized for lack of artistic...
****
[A]:
Longacre