Problem: Aspirated consonant:

To feel or see the difference between aspirated and unaspirated sounds, one can put a hand or a lit candle in front of one's mouth, and say pin [pn] and then spin [spn]. One should either feel a puff of air or see a flicker of the candle flame with pin that one does not get with spin. In most dialects of English, the initial consonant is aspirated in pin and unaspirated in spin.

What would you do to see the similarities between aspirated and unaspirated sounds?
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A: unanswerable

Problem: Historical aspects of the Expo line route are noteworthy. It uses the right-of-way for the Santa Monica Air Line that provided electric-powered freight and passenger service between Los Angeles and Santa Monica beginning in the 1920s. Service was discontinued in 1953 but diesel-powered freight deliveries to warehouses along the route continued until March 11, 1988. The abandonment of the line spurred concerns within the community and the entire right-of-way was purchased from Southern Pacific by Los Angeles Metropolitan Transportation Authority. The line was built in 1875 as the steam-powered Los Angeles and Independence Railroad to bring mining ore to ships in Santa Monica harbor and as a passenger excursion train to the beach.
In what year was Santa Monica harbor built?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The minority leader has a number of formal and informal party responsibilities. Formally, the rules of each party specify certain roles and responsibilities for their leader. For example, under Democratic rules for the 106th Congress, the minority leader may call meetings of the Democratic Caucus. He or she is a member of the Democratic Congressional Campaign Committee; names the members of the Democratic Leadership Council; chairs the Policy Committee; and heads the Steering Committee. Examples of other assignments are making "recommendations to the Speaker on all Democratic Members who shall serve as conferees" and nominating party members to the Committees on Rules and House Administration. Republican rules identify generally comparable functions for their top party leader.
What committee does the Policy Committee oversee?
A: unanswerable

Context and question: Sociocultural anthropology has been heavily influenced by structuralist and postmodern theories, as well as a shift toward the analysis of modern societies. During the 1970s and 1990s, there was an epistemological shift away from the positivist traditions that had largely informed the discipline.[page needed] During this shift, enduring questions about the nature and production of knowledge came to occupy a central place in cultural and social anthropology. In contrast, archaeology and biological anthropology remained largely positivist. Due to this difference in epistemology, the four sub-fields of anthropology have lacked cohesion over the last several decades.
What has been cohesive over the last several decades?
Answer: unanswerable

Question: The Early Jurassic spans from 200 million years to 175 million years ago. The climate was much more humid than the Triassic, and as a result, the world was very tropical. In the oceans, Plesiosaurs, Ichthyosaurs and Ammonites fill waters as the dominant races of the seas. On land, dinosaurs and other reptiles stake their claim as the dominant race of the land, with species such as Dilophosaurus at the top. The first true crocodiles evolved, pushing out the large amphibians to near extinction. All-in-all, reptiles rise to rule the world. Meanwhile, the first true mammals evolve, but remained relatively small sized.
Is there an answer to this question: What other order evolved during the Jurassic?

Answer: true mammals

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Transferring GameCube development to the Wii was relatively simple, since the Wii was being created to be compatible with the GameCube.[o] At E3 2005, Nintendo released a small number of Nintendo DS game cards containing a preview trailer for Twilight Princess. They also announced that Zelda would appear on the Wii (then codenamed "Revolution"), but it was not clear to the media if this meant Twilight Princess or a different game.
Where did Nintendo provide a limited number of Wii previews?
A:
unanswerable