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: "when's the last time calgary stampeders won the grey cup?" whose answer is 2014.
Each document should contain about 30 words, and these documents should contain useful information.

Query: last time calgary stampeders won the grey cup
Useful Output:

Doc 1: The Toronto Argonauts defeated the Calgary Stampeders 35–22 to win their 16th championship. Contents. 1 Results; 2 Win/Loss records. 2.1 Active teams; 2.2
Doc 2: Calgary Stampeders vs Ottawa REDBLACKS Grey Cup November 27, 2016 PHOTO: Andre Ringuette/Freestyle Photography
Doc 3: 2014, Calgary Stampeders (WD), 20 ; 2015, Edmonton Eskimos (WD), 26 ; 2016, Ottawa Redblacks (ED), 39 ; 2017, Toronto Argonauts (ED), 27
Doc 4: Calgary finally won the CFL title in its third straight appearance; the Stampeders lost 39-33 in overtime to Ottawa in 2016 before dropping a 27
Doc 5: Calgary hosted its first championship in 1975 and has since presented to the big event in 1993, 2000, and 2009.