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 was the country of origin of one of the major users of Butterfly style in 1980's hockey?" whose answer is Canada.
Each document should contain about 30 words, and these documents should contain useful information.

Query: notable butterfly style goaltenders in 1980s and their countries
Useful Output:

Doc 1: Glenn Hall was the first goaltender to ever do a 'butterfly'. Even though this wasn't exactly like a modern-day 'butterfly'.
Doc 2: That was the primary goaltender stance for a majority of NHL history, from Bill Durnan to Jacques Plante to Ken Dryden (not my intent to list
Doc 3: Roy created the “butterfly” technique, which goaltenders everywhere currently use as their style. While people questioned it at first, there was
Doc 4: The Butterfly Hybrid style really took on a life of its own with Patrick Roy in the mid-80s. Francois Allaire, Roy's longtime goalie coach, had
Doc 5: Using the butterfly, Roy was sensational — he backstopped the Montreal Canadiens to the Stanley Cup as a 20-year-old in 1986 — and it wasn't