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: "what year did the Sampdoria home venue stadium open?" whose answer is It opened in 1911.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when was luigi ferraris stadium opened for sampdoria
Useful Output:

Doc 1: Address: Via Giovanni de Prà, 1, Genoa; Country: Italian Republic; Capacity: 33,000; Opened: 22 January 1911; Main use: Football; Tenants: Genoa CFC
Doc 2: The home of Genoa C.F.C. U.C. football club, it opened in 1911 and is the oldest stadium still in use for football and other sports in Italy
Doc 3: It is the ninth-largest stadium in Italy by capacity. The stadium is named after Luigi Ferraris (1887–1915), an Italian footballer, engineer and soldier who
Doc 4: The home of Genoa CFC and UC Sampdoria football clubs, it opened in 1911 and is one of the oldest stadiums still in use for football and other sports in Italy.
Doc 5: Stadio Luigi Ferraris, Genoa-Sampdoria, Jan 5, 8.45pm CET, 7.45pm UK. Stadio-Luigi-Ferraris1. Cradle of the modern Italian game, Genoa is