Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Input: Consider Input: Heroes of Gaia (Chinese: ; pinyin: Yingxiong Zhi Cheng), known in the separate European version as Castle of Heroes, is a massively multiplayer online fantasy browser-based strategy game developed by the Chinese developer Snail Games and published in the United States by its U.S. publishing division, Snail Games USA.

Output: Who worked on Heroes of Gaia?


Input: Consider Input: CC's (pronounced cee-cees) is a brand of flavoured tortilla chips produced since the early 1980s, originally by The Smith's Snackfood Company, and currently by Snack Brands Australia.

Output: The country for CC's was what?


Input: Consider Input: Clathrodrillia walteri is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.


Output: Is the taxon rank of Clathrodrillia walteri species or genus?