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 designer of the Holy Trinity Church pioneered the use of what material in church building?" whose answer is terracotta.
Each document should contain about 30 words, and these documents should contain useful information.

Query: designer of Holy Trinity Church
Useful Output:

Doc 1: The architect, Joseph H. McGuire, had partnered with Rafael Guastavino on the project and the completed cathedral ceiling would soar upward as a
Doc 2: The Soane office produced seven designs for a Neo-Gothic church: four are held in the Soane Museum, and three are held in the Victoria and Albert Museum.
Doc 3: Holy Trinity, Sloane Square, was built in 1888–90, to a striking Arts and Crafts design, by the architect John Dando Sedding. It was paid for by
Doc 4: Scott was Britain's most preeminent Gothic Revival architect and a designer of notable renown whose involvement in the project imbued it with
Doc 5: And in 1907 the church was again pulled down and rebuilt according to designs by architect Peter MacGregor Chalmers, keeping close to the