TASK DEFINITION: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.
PROBLEM: Question: What main language was spoken by the tribe of which Khalid was a member? Passage:Khalid was a member of the Shayban tribe, dominant in the region of Diyar Bakr in the northern Jazira, and third son of Yazid ibn Mazyad al-Shaybani, who served twice as Arab governor (ostikan) of Arminiya (a large province encompassing the whole of Transcaucasia). Khalid served in the same office no less than four times: in 813/814, 828–832, briefly in 841 and again under Caliph al-Wathiq (r. 842–845). In his first tenure, he showed himself conciliatory towards the native Christian population and the nakharar princes, but his second tenure was marked by the brutal suppression of several revolts by local Arab magnates, as well as the harsh treatment of the Christian population. As a result, when his re-appointment to the office was announced in 841, a rebellion broke out, forcing the Abbasid government to recall him immediately. Nevertheless, al-Wathiq assigned Arminiya to Khalid. The latter arrived in the province at the head of an army, and crushed any opposition. He died soon after at Dvin, where he was buried. He was succeeded by his son, Muhammad. His younger son Haytham ibn Khalid ruled in the family's stronghold of Shirvan, and was the first to claim the title of Shirvanshah.


SOLUTION: Khalid was a member of the Shayban tribe, dominant in the region of Diyar Bakr in the northern Jazira, and third son of Yazid ibn Mazyad al-Shaybani, who served twice as Arab governor (ostikan) of Arminiya (a large province encompassing the whole of Transcaucasia)

PROBLEM: Question: Who was the head coach for the Edmonton Oilers when the team joined the NHL? Passage:Matheson was born on April 7, 1949 in Winnipeg, Manitoba to Jack and Peggy Matheson. Matheson had an intention to follow the footsteps of his father, Jack, a long-time sports editor for the Winnipeg Tribune. He graduated from the University of Manitoba with a degree in political science, and while in school, worked a part-time night shift with the Tribune. He got his first job upon completing school with the Regina Leader-Post, but moved west to Edmonton, Alberta six months later. Upon moving to Edmonton, Matheson got a job with the Edmonton Journal in 1970. He initially covered local curling and university sports, but quickly switched to hockey, when, in 1973, Edmonton was granted a WHA franchise, the Edmonton Oilers. Matheson became the beat writer for the Oilers then, and continued when the Oilers joined the NHL in 1979. He spent countless hours covering the team and its five Stanley Cups, and completed more than 300 stories per winter. In addition to writing, Matheson also was a part of the CFRN radio broadcasting team that covered the Oilers. After 24 years, he completed his tenure as beat writer for the Oilers in 1997. He now continues to write for the Edmonton Journal covering the NHL and the Oilers.


SOLUTION: Matheson became the beat writer for the Oilers then, and continued when the Oilers joined the NHL in 1979

PROBLEM: Question: What country did the storm stall off the coast of around November 6th? Passage:On November 4, an extratropical disturbance was spawned just off the coast of western France, within a cold front, by another extratropical cyclone to the north, named "Quinn." This storm began causing heavy rainfall in northern Italy, leading to flooding in the region. On the next day, a low-pressure area formed over western France, and the system was named Rolf by the Free University of Berlin, which names all significant low pressure systems affecting Europe. As the storm slowly moved eastward, it caused flooding in the Balearic Islands. Rolf gradually organized, and convection began to increase in the storm. Over the next couple of days, the storm continued to organize as it moved eastward, approaching the northwestern coast of Italy. On November 5, Rolf's forward motion slowed while the storm was stationed above the Massif Central in southern France, maintaining a central pressure of . On November 6, the system moved into the western Mediterranean Sea and stalled off the coast of Liguria, while gradually strengthening, bringing additional flooding to the region. Around the same time, the storm's frontal structure shrunk to in length. During that evening, Rolf spawned a tornado over Alassio, in northern Italy, causing some structural damage. On November 7, 2011, Rolf turned westward and slowly transitioned from an extratropical system into a subtropical depression over the warm waters of the Mediterranean Sea, with the system acquiring a warm quasi-symmetric core, and with organized convective rainbands wrapping around the center of the storm. The storm was then given the designation Invest 99L, by the United States Naval Research Laboratory (the NRL). The NOAA also began watching the subtropical depression, which was now located in the Gulf of Lion. Later that day, Rolf transitioned from a subtropical depression into a tropical depression off the coast of France, and the NOAA gave Rolf the identifier 01M. 


SOLUTION:
On November 6, the system moved into the western Mediterranean Sea and stalled off the coast of Liguria, while gradually strengthening, bringing additional flooding to the region