Question: Where does the grand canal start and finish?

Disambiguated questions and answers:
context: The Grand Canal, known to the Chinese as the Jing–Hang Grand Canal (, or more commonly, as the「大運河」("Grand Canal")), a UNESCO World Heritage Site, is the longest as well as the oldest canal or artificial river in the world. Starting at Beijing, it passes through Tianjin and the provinces of Hebei, Shandong, Jiangsu and Zhejiang to the city of Hangzhou, linking the Yellow River and Yangtze River. The oldest parts of the canal date back to the 5th century BC, but the various sections were first connected during the Sui dynasty (581–618 AD). Dynasties in 1271–1633 significantly rebuilt the canal and altered its route to supply their capital Beijing.
question: Where does the grand canal in China start?
short_answers: Beijing
wikipage: Grand Canal (China)
context: The Yongle Emperor moved the Ming capital from Nanjing to Beijing in 1403. This move deprived Nanjing of its status as chief political center of China. The reopening of the Grand Canal also benefited Suzhou over Nanjing since the former was in a better position on the main artery of the Grand Canal, and so it became Ming China's greatest economic center. The only other viable contender with Suzhou in the Jiangnan region was Hangzhou, but it was located further down the Grand Canal and away from the main delta. Even the shipwrecked Korean Choe Bu (1454–1504)—while traveling for five months throughout China in 1488—acknowledged that Hangzhou served not as a competitor but as an economic feeder into the greater Suzhou market. Therefore, the Grand Canal served to make or break the economic fortunes of certain cities along its route, and served as the economic lifeline of indigenous trade within China.
question: Where does the grand canal in China finish?
short_answers: Hangzhou
wikipage: Grand Canal (China)
context: One end of the canal leads into the lagoon near the Santa Lucia railway station and the other end leads into the basin at San Marco; in between, it makes a large reverse-S shape through the central districts ("sestieri") of Venice. It is long, and wide, with an average depth of .
question: What body of water does the grand canal of Venice lead into near the Santa Lucia railway station?
short_answers: Venetian lagoon
lagoon
wikipage: Grand Canal (Venice)
context: One end of the canal leads into the lagoon near the Santa Lucia railway station and the other end leads into the basin at San Marco; in between, it makes a large reverse-S shape through the central districts ("sestieri") of Venice. It is long, and wide, with an average depth of .
question: What body of water does the grand canal in Venice lead into near San Marco?
short_answers: basin
wikipage: Grand Canal (Venice)
context: No context provided
question: Where does the grand canal in Ireland start?
short_answers: Shannon Harbour
context: No context provided
question: Where does the grand canal in Ireland end?
short_answers: dock
Grand Canal Dock

Long-form answers:
knowledge: content: The Grand Canal (Irish: An Chanáil Mhór) is the southernmost of a pair of canals that connect Dublin, in the east of Ireland, with the River Shannon in the west, via Tullamore and a number of other villages and towns, the two canals nearly encircling Dublin's inner city. 
wikipage: Grand Canal (Ireland)
long_answer: There are multiple waterways named the Grand Canal. China's Grand Canal, the longest and oldest canal or artificial river in the world, starts in Beijing and finishes in Hangzhou. The Grand Canal in Ireland starts in Shannon Harbour and connects Dublin with the River Shannon, finishing in the Grand Canal Dock. The Grand Canal in Venice leads into the Venetian lagoon near the Santa Lucia railway station on one end and into the basin at San Marco on the other.