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.

[Q]: 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.
[A]: Which two E numbers have been approved by the FDA?


[Q]: Passage: Several states have never had capital punishment, the first being Michigan, which abolished it shortly after entering the Union. (However, the United States government executed Tony Chebatoris at the Federal Correctional Institution in Milan, Michigan in 1938.) Article 4, Section 46 of Michigan's fourth Constitution (ratified in 1963; effective in 1964) prohibits any law providing for the penalty of death. Attempts to change the provision have failed. In 2004, a constitutional amendment proposed to allow capital punishment in some circumstances failed to make it on the November ballot after a resolution failed in the legislature and a public initiative failed to gather enough signatures.
[A]: What happened in 1935?


[Q]: Passage: Some high-speed black-and-white films, such as Ilford Delta 3200 and Kodak T-MAX P3200, are marketed with film speeds in excess of their true ISO speed as determined using the ISO testing method. For example, the Ilford product is actually an ISO 1000 film, according to its data sheet. The manufacturers do not indicate that the 3200 number is an ISO rating on their packaging. Kodak and Fuji also marketed E6 films designed for pushing (hence the "P" prefix), such as Ektachrome P800/1600 and Fujichrome P1600, both with a base speed of ISO 400.
[A]:
What cameras have speeds above what they are marketed as?