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: "The owner of the painting The Madonna del Granduca held what title from 1805-1814?" whose answer is Grand Duke of Würzburg.
Each document should contain about 30 words, and these documents should contain useful information.

Query: owner of The Madonna del Granduca 1805-1814 title
Useful Output:

Doc 1: This famous painting, whose origins and customer are unknown, takes its name from Ferdinand III, Grand Duke of Tuscany (1769-1824) who authorised its purchase
Doc 2: The Madonna del Granduca is a Madonna painting by the Italian renaissance artist Raphael. It was probably painted in 1505, shortly after Raphael had arrived
Doc 3: Initially called the Teatro delle Logge del Grano, in 1876 it was named for its owner, the actor Tommaso Salvini. The theatre was very nice and well illuminated
Doc 4: Names: Fiocchi Malaspina, Elisabetta, editor. | Silvestrini, Gabriella, 1961- editor. Title: Natural law and the law of nations in Eighteenth- and
Doc 5:  owner of the painting The Madonna del Granduca held what title from 1805-1814?\n", "completion": "\nGrand Duke of W\u00fcrzburg\n"} {"prompt": "\nWhat are