Question: Frank Howard wrote for what daily newspaper owned by Postmedia Network in Ottawa, Ontario?

Context paragraphs:
The Courier (Findlay): The Courier is a daily newspaper based in Findlay, Ohio covering Hancock County and parts of Wyandot, Putnam, Seneca, Wood, Allen and Henry counties in Ohio.  The newspaper owned by The Findlay Publishing Company which in addition to daily newspaper operations in Findlay and Fostoria Ohio, operates Allegra Print and Imaging, a commercial printing operation in Findlay, Ohio as well as radio stations WFIN and WKXA, in Findlay, WBUK in Ottawa and WCSI, WKKG WINN, and WWWY in Columbus, Indiana.

Niagara Falls Review: The Niagara Falls Review is a daily newspaper published for the Niagara Falls, Fort Erie and Niagara-on-the-Lake area.  The paper is owned by Postmedia Network.

Postmedia Network: Postmedia Network Canada Corporation (also known as Postmedia Network or Postmedia) is a Canadian media company consisting of the publishing properties of the former Canwest, with primary operations in newspaper publishing, news gathering and Internet operations.

Frank Howard (columnist): Frank Howard (3 January 1931 – 26 February 2008) was a Canadian journalist and columnist who wrote for the "Ottawa Citizen", "The Globe and Mail", the "Montreal Gazette", the "Montreal Star", and the "Quebec Chronicle-Telegraph".

Windsor Star: The Windsor Star is the regional daily newspaper of Windsor, Ontario, Canada.  It is owned by the Postmedia Network and published Mondays through Saturdays.  The publication had its main office at 167 Ferry Street from 1923 to 2012, before moving to its current location at 300 Ouellette Avenue.

National Post: The National Post is a Canadian English-language newspaper.  The paper is the flagship publication of Postmedia Network, and is published Tuesdays through Saturdays.  It was founded in 1998 by Conrad Black.  Once distributed nationally, it later began publishing a daily edition in the provinces of Ontario, Quebec, Alberta and British Columbia, with only its weekend edition available in Manitoba and Saskatchewan.  As of 2006, the "Post" is no longer distributed in Canada's Atlantic provinces and the territories.  As of 2017, the "Post" is no longer a daily newspaper, publishing on a reduced schedule and transitioning subcribers to electronic delivery.

Ottawa Citizen: The Ottawa Citizen is an English-language daily newspaper owned by Postmedia Network in Ottawa, Ontario, Canada.  According to the Canadian Newspaper Association, the paper had a 2008 weekly circulation of 900,197.

Calgary Herald: The Calgary Herald is a daily newspaper published in Calgary, Alberta, Canada.  It was first published in 1883 as The Calgary Herald, Mining and Ranche Advocate and General Advertiser.  It is owned by the Postmedia Network.

The Vancouver Sun: The Vancouver Sun is a daily newspaper first published in the Canadian province of British Columbia on February 12, 1912.  The paper is currently published by the Pacific Newspaper Group, a division of Postmedia Network.  It is published six days a week, Monday to Saturday.

Barrie Examiner: The Barrie Examiner (ISSN 0839-4156  ) is the daily newspaper for Barrie, Ontario, and the surrounding area.  It has been owned by Postmedia Network since 2015.

Supporting paragraphs: Frank Howard (columnist) Ottawa Citizen
Answer: The Ottawa Citizen