Input: Article: The capital and largest city is Lahore which was the historical capital of the wider Punjab region. Other important cities include Faisalabad, Rawalpindi, Gujranwala, Sargodha, Multan, Sialkot, Bahawalpur, Gujrat, Sheikhupura, Jhelum and Sahiwal. Undivided Punjab is home to six rivers, of which five flow through Pakistani Punjab. From west to east, these are: the Indus, Jhelum, Beas, Chenab, Ravi and Sutlej. Nearly 60% of Pakistan's population lives in the Punjab. It is the nation's only province that touches every other province; it also surrounds the federal enclave of the national capital city at Islamabad. In the acronym P-A-K-I-S-T-A-N, the P is for Punjab.

Now answer this question: What is the easternmost river in Punjab?

Output: Sutlej

Input: Article: The Boston Globe wrote that "if there's one school that can lay claim to educating the nation's top national leaders over the past three decades, it's Yale." Yale alumni were represented on the Democratic or Republican ticket in every U.S. Presidential election between 1972 and 2004. Yale-educated Presidents since the end of the Vietnam War include Gerald Ford, George H.W. Bush, Bill Clinton, and George W. Bush, and major-party nominees during this period include John Kerry (2004), Joseph Lieberman (Vice President, 2000), and Sargent Shriver (Vice President, 1972). Other Yale alumni who made serious bids for the Presidency during this period include Hillary Clinton (2008), Howard Dean (2004), Gary Hart (1984 and 1988), Paul Tsongas (1992), Pat Robertson (1988) and Jerry Brown (1976, 1980, 1992).

Now answer this question: How many times were Yale alumni on a presidential ticket between 1972 and 2004

Output: every

Input: Article: Ultimately, Hitler was trapped within his own vision of bombing as a terror weapon, formed in the 1930s when he threatened smaller nations into accepting German rule rather than submit to air bombardment. This fact had important implications. It showed the extent to which Hitler personally mistook Allied strategy for one of morale breaking instead of one of economic warfare, with the collapse of morale as an additional bonus. Hitler was much more attracted to the political aspects of bombing. As the mere threat of it had produced diplomatic results in the 1930s, he expected that the threat of German retaliation would persuade the Allies to adopt a policy of moderation and not to begin a policy of unrestricted bombing. His hope was — for reasons of political prestige within Germany itself — that the German population would be protected from the Allied bombings. When this proved impossible, he began to fear that popular feeling would turn against his regime, and he redoubled efforts to mount a similar "terror offensive" against Britain in order to produce a stalemate in which both sides would hesitate to use bombing at all.

Now answer this question: Why did Hitler use terror bombing against Britain? 

Output:
to produce a stalemate