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

Context : The National Museum of Haiti (Musée National d'Haiti) in Port-au-Prince, Haiti, was completed in 1938. 
Question : When was National Museum of Haiti opened officially?
1938

Context : Anna Brandoli (born 25 July 1945) is an Italian female comic book artist. 
Question : What is the sex of Anna Brandoli?
female

Context : Colonel Charles deForest Chandler (December 24, 1878 -- May 18, 1939) was an American military aviator, and the first head of the Aeronautical Division, U.S. Signal Corps that later became the United States Air Force. 
Question : Which armed forces utilised the service of Charles deForest Chandler?

United States Air Force