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.

[EX Q]: Most light bulbs have either clear or coated glass. The coated glass bulbs have a white powdery substance on the inside called kaolin. Kaolin, or kaolinite, is a white, chalky clay in a very fine powder form, that is blown in and electrostatically deposited on the interior of the bulb. It diffuses the light emitted from the filament, producing a more gentle and evenly distributed light. Manufacturers may add pigments to the kaolin to adjust the characteristics of the final light emitted from the bulb. Kaolin diffused bulbs are used extensively in interior lighting because of their comparatively gentle light. Other kinds of colored bulbs are also made, including the various colors used for "party bulbs", Christmas tree lights and other decorative lighting. These are created by coloring the glass with a dopant; which is often a metal like cobalt (blue) or chromium (green). Neodymium-containing glass is sometimes used to provide a more natural-appearing light.
[EX A]: What is the powdery substance in coated glass light bulbs?

[EX Q]: Despite being a persistent critic of some of the government's policies, the paper supported Labour in both subsequent elections the party won. For the 2005 general election, The Sun backed Blair and Labour for a third consecutive election win and vowed to give him "one last chance" to fulfil his promises, despite berating him for several weaknesses including a failure to control immigration. However, it did speak of its hope that the Conservatives (led by Michael Howard) would one day be fit for a return to government. This election (Blair had declared it would be his last as prime minister) resulted in Labour's third successive win but with a much reduced majority.
[EX A]: Who did The Sun endorse in the 2005 general election?

[EX Q]: According to the scriptures, Gautama Buddha presented himself as a model. The Dharma offers a refuge by providing guidelines for the alleviation of suffering and the attainment of Nirvana. The Sangha is considered to provide a refuge by preserving the authentic teachings of the Buddha and providing further examples that the truth of the Buddha's teachings is attainable.
[EX A]:
Who presented himself as a model?