<https://www.calgarydealsblog.com/2020/03/air-canada-20-off-promotion-code-book-by-mar-6.html#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.calgarydealsblog.com/2020/03/air-canada-20-off-promotion-code-book-by-mar-6.html>