Problem: Please answer a question about the following article about IPod:
Since October 2004, the iPod line has dominated digital music player sales in the United States, with over 90% of the market for hard drive-based players and over 70% of the market for all types of players. During the year from January 2004 to January 2005, the high rate of sales caused its U.S. market share to increase from 31% to 65% and in July 2005, this market share was measured at 74%. In January 2007 the iPod market share reached 72.7% according to Bloomberg Online.
Approximately what percentage of the hard drive-based music player sales does iPod have since 2004?
A: 90%
Problem: Please answer a question about the following article about Nanjing:
Nanjing is the intersection of Yangtze River, an east-west water transport artery, and NanjingBeijing railway, a south-north land transport artery, hence the name "door of the east and west, throat of the south and north". Furthermore, the west part of the Ningzhen range is in Nanjing; the Loong-like Zhong Mountain is curling in the east of the city; the tiger-like Stone Mountain is crouching in the west of the city, hence the name "the Zhong Mountain, a dragon curling, and the Stone Mountain, a tiger crouching". Mr. Sun Yet-sen spoke highly of Nanjing in the "Constructive Scheme for Our Country", "The position of Nanjing is wonderful since mountains, lakes and plains all integrated in it. It is hard to find another city like this."
What is the railway that runs South to North called?
A: NanjingBeijing railway
Problem: Please answer a question about the following article about Montana:
Simultaneously with these conflicts, bison, a keystone species and the primary protein source that Native people had survived on for centuries were being destroyed. Some estimates say there were over 13 million bison in Montana in 1870. In 1875, General Philip Sheridan pleaded to a joint session of Congress to authorize the slaughtering of herds in order to deprive the Indians of their source of food. By 1884, commercial hunting had brought bison to the verge of extinction; only about 325 bison remained in the entire United States.
What year did General Sheridan approach Congress about killing bison?
A: 1875
Problem: Please answer a question about the following article about Genocide:
The Convention came into force as international law on 12 January 1951 after the minimum 20 countries became parties. At that time however, only two of the five permanent members of the UN Security Council were parties to the treaty: France and the Republic of China. The Soviet Union ratified in 1954, the United Kingdom in 1970, the People's Republic of China in 1983 (having replaced the Taiwan-based Republic of China on the UNSC in 1971), and the United States in 1988. This long delay in support for the Convention by the world's most powerful nations caused the Convention to languish for over four decades. Only in the 1990s did the international law on the crime of genocide begin to be enforced.
Of the five permanent members of the UN Security Council, how many were parties to the treaty?
A:
only two