The Jurchens were a Tungusic-speaking group of semi-agrarian tribes inhabiting areas of northeast Asia that are now part of Northeast China. Many of the Jurchen tribes were vassals of the Liao dynasty , an empire ruled by the nomadic Khitans that included most of modern Mongolia, a portion of North China, Northeast China, northern Korea, and parts of the Russian Far East. To the south of the Liao lay the Han Chinese Song Empire . The Song and Liao were at peace, but since a military defeat to the Liao in 1005, the Song paid its northern neighbor an annual indemnity of 200,000 bolts of silk and 100,000 ounces of silver. In 1114, the chieftain Wanyan Aguda united the disparate Jurchen tribes and led a revolt against the Liao. In 1115 he named himself emperor of the Jin "golden" dynasty . Informed by a Liao defector of the success of the Jurchen uprising, the Song emperor Huizong and his highest military commander the eunuch Tong Guan saw the Liao weakness as an opportunity to recover the Sixteen Prefectures, a line of fortified cities and passes that the Liao had annexed from the Shatuo Turk Later Jin in 938, and that the Song had repeatedly but unsuccessfully tried to reconquer. The Song thus sought an alliance with the Jin against their common enemy the Liao.

Which product did the Song pay less of, bolts of silk or ounces of silver?
A: ounces of silver

Looking for their first win, the 49ers flew to Arrowhead Stadium for an interconference duel with the Chiefs. In the 2nd quarter, the 49ers trailed early as QB Matt Cassel completed a 31-yard TD pass to WR Dexter McCluster. The 49ers replied with kicker Joe Nedney hitting a 51-yard field goal. The 49ers fell further behind when Chiefs' kicker Ryan Succop hit a 32-yard field goal and then in the third quarter when Cassel found WR Dwayne Bowe and TE Tony Moeaki on 45 and 18-yard TD passes, respectively. RB Thomas Jones followed these scores with a 3-yard TD run. The 49ers narrowed the score when QB Alex Smith made a 12-yard TD pass to WR Josh Morgan.

How many more touchdowns did Cassel throw than Smith?
A: 2

Hoping to rebound from their loss to the 49ers the Rams played inside their dome for an NFC duel with the Falcons. In the first quarter the Rams took the lead after QB Sam Bradford making a 25-yard TD pass to TE Michael Hoomanawanui. The Falcons replied with kicker Matt Bryant hitting a 42-yard field goal. The Rams increased their lead when kicker Josh Brown hit a 53-yard field goal. The lead didn't last long after QB Matt Ryan completed a 12-yard TD pass to WR Brian Finneran, followed by Bryant nailing a 29 and a 24-yard field goal. The Rams tried to cut the lead with Bradford making a 13-yard TD pass to WR Brandon Gibson, but they struggled further as Ryan threw a 2-yard TD pass to TE Justin Peelle. This was followed in the fourth quarter by Bryant nailing a 21-yard field goal, and with RB Michael Turner getting a 39-yard TD run.

How many yards longer was the longest field goal in the game than the shortest?
A:
32