Generate a correct and concise answer for the question based on the words in the context.

Context : The Neutronium Alchemist is a science fiction novel by Peter F. Hamilton and is the second book in The Night's Dawn Trilogy. 
Question : To which series does The Neutronium Alchemist belong?
The Night's Dawn Trilogy

Context : Mitja Gasparini (born 26 June 1984) is a Slovenian male volleyball player. 
Question : What is the sex of Mitja Gasparini?
male

Context : Willard Warner (September 4, 1826 -- November 23, 1906) was a brevet brigadier general in the Union Army during the American Civil War. 
Question : In what military branch did Willard Warner serve?

Union Army