TASK DEFINITION: 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.
PROBLEM: Passage: There is no natural source for green food colorings which has been approved by the US Food and Drug Administration. Chlorophyll, the E numbers E140 and E141, is the most common green chemical found in nature, and only allowed in certain medicines and cosmetic materials. Quinoline Yellow (E104) is a commonly used coloring in the United Kingdom but is banned in Australia, Japan, Norway and the United States. Green S (E142) is prohibited in many countries, for it is known to cause hyperactivity, asthma, urticaria, and insomnia.

SOLUTION: Which two E numbers have been approved by the FDA?

PROBLEM: Passage: Terra preta (black earth), which is distributed over large areas in the Amazon forest, is now widely accepted as a product of indigenous soil management. The development of this fertile soil allowed agriculture and silviculture in the previously hostile environment; meaning that large portions of the Amazon rainforest are probably the result of centuries of human management, rather than naturally occurring as has previously been supposed. In the region of the Xingu tribe, remains of some of these large settlements in the middle of the Amazon forest were found in 2003 by Michael Heckenberger and colleagues of the University of Florida. Among those were evidence of roads, bridges and large plazas.

SOLUTION: Terra preta is distributor over a small area of what?

PROBLEM: Passage: The end for the Laemmles came with a lavish version of Show Boat (1936), a remake of its earlier 1929 part-talkie production, and produced as a high-quality, big-budget film rather than as a B-picture. The new film featured several stars from the Broadway stage version, which began production in late 1935, and unlike the 1929 film was based on the Broadway musical rather than the novel. Carl, Jr.'s spending habits alarmed company stockholders. They would not allow production to start on Show Boat unless the Laemmles obtained a loan. Universal was forced to seek a $750,000 production loan from the Standard Capital Corporation, pledging the Laemmle family's controlling interest in Universal as collateral. It was the first time Universal had borrowed money for a production in its 26-year history. The production went $300,000 over budget; Standard called in the loan, cash-strapped Universal could not pay, Standard foreclosed and seized control of the studio on April 2, 1936.

SOLUTION:
Who was forced to seek a $300,000 loan?