Definition: Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
Input: Westerhout 43, also known as W43, is a region of star formation of our galaxy located in the constellation of Aquila at a distance of 6 kilo-parsecs (nearly 20,000 light-years) of the Sun, that is considered the region of the Milky Way that is most actively forming stars.
