You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Shall We Dance? was a tune from the musical that was sung by which soprano in the film version?" whose answer is Margaret Nixon McEathron.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Shall We Dance? musical
Useful Output:

Doc 1: First up in our new Classic Musical Film series! Ballet dancer Peter Peters (Fred Astaire) is obsessed with the idea of partnering with
Doc 2: Which brings me back to the musical's use of the song; based on a 1944 novel that drew upon Anna Leonowens's experiences, during the 1860s, as
Doc 3: "Shall We Dance" is a from the Rodgers and Hammerstein musical, The King and I. In the 1956 film version, it was sung by Marni Nixon, who
Doc 4: The film, directed by pro Mark Sandrich, is set on boarda ship to the U.S., where Petrov/Pete meets and falls for Linda keene (Ginger Rogers), a
Doc 5: Directed by Mike Ockrent; Associate Director: Steven Zweigbaum Choreographed by Susan Stroman; Assistant Choreographer: Chris Peterson