This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.

Ex Input:
Passage: The thalidomide tragedy resurrected Kefauver's bill to enhance drug regulation that had stalled in Congress, and the Kefauver-Harris Amendment became law on 10 October 1962. Manufacturers henceforth had to prove to FDA that their drugs were effective as well as safe before they could go on the US market. The FDA received authority to regulate advertising of prescription drugs and to establish good manufacturing practices. The law required that all drugs introduced between 1938 and 1962 had to be effective. An FDA - National Academy of Sciences collaborative study showed that nearly 40 percent of these products were not effective. A similarly comprehensive study of over-the-counter products began ten years later.

Ex Output:
When did the FDA Amendment become a law?


Ex Input:
Passage: LE: Life expectancy at birth
MYS: Mean years of schooling (Years that a person 25 years-of-age or older has spent in schools)
EYS: Expected years of schooling (Years that a 5-year-old child will spend in schools throughout his life)
GNIpc: Gross national income at purchasing power parity per capita

Ex Output:
What does LI stand for?


Ex Input:
Passage: Samoans' religious adherence includes the following: Christian Congregational Church of Samoa 31.8%, Roman Catholic 19.4%, Methodist 15.2%, Assembly of God 13.7%, Mormon 7.6%, Seventh-day Adventist 3.9%, Worship Centre 1.7%, other Christian 5.5%, other 0.7%, none 0.1%, unspecified 0.1% (2011 estimate). The Head of State until 2007, His Highness Malietoa Tanumafili II, was a Bahá'í convert. Samoa hosts one of seven Bahá'í Houses of Worship in the world; completed in 1984 and dedicated by the Head of State, it is located in Tiapapata, 8 km (5 mi) from Apia.

Ex Output:

What percentage of Samoans were Methodist in 2007?