TASK DEFINITION: This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
PROBLEM: (The Ms 6.1 earthquake on August 30, 2008 in southern Sichuan was not part of this series because it was caused by a different fault. See 2008 Panzhihua earthquake for details.)

SOLUTION: When did this earthquake occur?

PROBLEM: WHO recommends a child with diarrhea continue to be fed. Continued feeding speeds the recovery of normal intestinal function. In contrast, children whose food is restricted have diarrhea of longer duration and recover intestinal function more slowly. A child should also continue to be breastfed. The WHO states "Food should never be withheld and the child's usual foods should not be diluted. Breastfeeding should always be continued." And in the specific example of cholera, CDC also makes the same recommendation. In young children who are not breast-fed and live in the developed world, a lactose-free diet may be useful to speed recovery.

SOLUTION: What does WHO recommend?

PROBLEM: While there is some international commonality in the way political parties are recognized, and in how they operate, there are often many differences, and some are significant. Many political parties have an ideological core, but some do not, and many represent very different ideologies than they did when first founded. In democracies, political parties are elected by the electorate to run a government. Many countries have numerous powerful political parties, such as Germany and India and some nations have one-party systems, such as China. The United States is a two-party system, with its two most powerful parties being the Democratic Party and the Republican Party.

SOLUTION:
What are the two most powerful political parties in the United States?