Question: The Orion Nebula, is a diffuse nebula situated in the Milky Way, being south of Orion's Belt, also known as the Three Kings or Three Sisters, is an asterism in the constellation Orion, and consists of how many bright stars?
Sentence (from "Messier 43"): The De Mairan's Nebula is part of the Orion Nebula, separated from the main nebula by a lane of dust.
Relevant evidence: No