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

The user is trying to answer the question: "when did they start using titanium in surgery?" whose answer is the 1950s.
Each document should contain about 30 words, and these documents should contain noisy information.

Query: when did titanium start being used in orthopedic surgery
Noisy Output:

Doc 1: The titanium was discovered in 1791 by mineralogist William Gregor, a discovery that would later prove to revolutionize the field of orthopedic
Doc 2: Titanium is a common material in a variety of orthopedic implants. Most total hip femoral stem components are made of a titanium alloy.
Doc 3: Various metals have been used in the manufacturing of orthopedic implants in the past. Experiments have been conducted with various materials
Doc 4: 没有此网页的信息。 · 了解原因
Doc 5: Orthopedic surgeons are hesitant to combine stainless steel and titanium implants for fear of complications occurrence.