Article: In addition to his many other roles, the emperor acted as the highest priest in the land who made sacrifices to Heaven, the main deities known as the Five Powers, and the spirits (shen ) of mountains and rivers. It was believed that the three realms of Heaven, Earth, and Mankind were linked by natural cycles of yin and yang and the five phases. If the emperor did not behave according to proper ritual, ethics, and morals, he could disrupt the fine balance of these cosmological cycles and cause calamities such as earthquakes, floods, droughts, epidemics, and swarms of locusts.

Question: How many realms were commonly thought of as being linked by a natural cycle?
Ans: three realms

Article: In 1854 president Antonio Lopez de Santa Anna enlarged the area of the Federal District almost eightfold from the original 220 to 1,700 km2 (80 to 660 sq mi), annexing the rural and mountainous areas to secure the strategic mountain passes to the south and southwest to protect the city in event of a foreign invasion. (The MexicanAmerican War had just been fought.) The last changes to the limits of the Federal District were made between 1898 and 1902, reducing the area to the current 1,479 km2 (571 sq mi) by adjusting the southern border with the state of Morelos. By that time, the total number of municipalities within the Federal District was twenty-two.

Question: How many smaller cities did Mexico City make up at its height?
Ans: twenty-two

Article: Since the late 18th century, Paris has been famous for its restaurants and haute cuisine, food meticulously prepared and artfully presented. A luxury restaurant, La Taverne Anglaise, opened in 1786 in the arcades of the Palais-Royal by Antoine Beauvilliers; it featured an elegant dining room, an extensive menu, linen tablecloths, a large wine list and well-trained waiters; it became a model for future Paris restaurants. The restaurant Le Grand Vefour in the Palais-Royal dates from the same period. The famous Paris restaurants of the 19th century, including the Cafe de Paris, the Rocher de Cancale, the Cafe Anglais, Maison Doree and the Cafe Riche, were mostly located near the theatres on the Boulevard des Italiens; they were immortalised in the novels of Balzac and Emile Zola. Several of the best-known restaurants in Paris today appeared during the Belle Epoque, including Maxim's on Rue Royale, Ledoyen in the gardens of the Champs-Elysees, and the Tour d'Argent on the Quai de la Tournelle.

Question: In what century was Cafe Anglais, Cafe de Paris and Rocher de Cancale opened?
Ans: 19th

Article: Amtrak's Northeast Corridor and Chicago lines originate at South Station, which serves as a major intermodal transportation hub, and stop at Back Bay. Fast Northeast Corridor trains, which serve New York City, Washington, D.C., and points in between, also stop at Route 128 Station in the southwestern suburbs of Boston. Meanwhile, Amtrak's Downeaster service to Maine originates at North Station, despite the current lack of a dedicated passenger rail link between the two railhubs, other than the "T" subway lines.

Question: Where does the Downeaster service to maine start?
Ans:
North Station