TASK DEFINITION: In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
PROBLEM: The Preamble to the United States Constitution is a brief introductory statement of the Constitution's fundamental purposes and guiding principles. It states in general terms, and courts have referred to it as reliable evidence of the Founding Fathers' intentions regarding the Constitution's meaning and what they hoped the Constitution would achieve.

SOLUTION: main idea of the preamble to the constitution

PROBLEM: The Pilgrims or Pilgrim Fathers were early European settlers of the Plymouth Colony in present-day Plymouth, Massachusetts, United States. The Pilgrims' leadership came from the religious congregations of Brownist English Dissenters who had fled the volatile political environment in England for the relative calm and tolerance of 16th -- 17th century Holland in the Netherlands. The Pilgrims held Puritan Calvinist religious beliefs but, unlike other Puritans, they maintained that their congregations needed to be separated from the English state church. As a separatist group, they were also concerned that they might lose their English cultural identity if they remained in the Netherlands, so they arranged with English investors to establish a new colony in North America. The colony was established in 1620 and became the second successful English settlement in North America (after the founding of Jamestown, Virginia in 1607). The Pilgrims' story became a central theme of the history and culture of the United States.

SOLUTION: who were the pilgrims and what did they want

PROBLEM: Concrete hardens as a result of the chemical reaction between cement and water (known as hydration, this produces heat and is called the heat of hydration). For every pound (or kilogram or any unit of weight) of cement, about 0.35 pounds (or 0.35 kg or corresponding unit) of water is needed to fully complete hydration reactions.

SOLUTION:
minimum required water cement ratio for a workable concrete is