How many episodes did David Jackson write and direct?
{'header': ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (millions)'], 'page_title': '', 'section_title': '', 'caption': '', 'rows': [['46', '1', '"Like You Like an Arsonist"', 'Greg Prange', 'Mark Schwahn', 'October5,2005', '2T6151', '3.46'], ['47', '2', '"From the Edge of the Deep Green Sea"', 'Kevin Dowling', 'Mark Schwahn', 'October12,2005', '2T6152', '3.12'], ['48', '3', '"First Day on a Brand New Planet"', 'Billy Dickson', 'Terrence Coli', 'October19,2005', '2T6153', '3.12'], ['49', '4', '"An Attempt to Tip the Scales"', 'Janice Cooke', 'Stacy Rukeyser', 'October26,2005', '2T6154', '3.36'], ['50', '5', '"A Multitude of Casualties"', 'Thomas J. Wright', 'R. Lee Fleming, Jr', 'November2,2005', '2T6155', '3.03'], ['51', '6', '"Locked Hearts and Hand Grenades"', 'Marita Grabiak', 'James Stoteraux and Chad Fiveash', 'November9,2005', '2T6156', '3.42'], ['53', '8', '"The Worst Day Since Yesterday"', 'John Asher', 'Mike Herro and David Strauss', 'November30,2005', '2T6158', '3.41'], ['54', '9', '"How a Resurrection Really Feels"', 'Greg Prange', 'Mark Schwahn', 'December7,2005', '2T6159', '3.33'], ['55', '10', '"Brave New World"', 'John Asher', 'John A. Norris', 'January11,2006', '2T6160', '3.23'], ['56', '11', '"Return of the Future"', 'Bethany Rooney', 'Terrence Coli', 'January18,2006', '2T6161', '2.67'], ['57', '12', '"I\'ve Got Dreams to Remember"', 'Stuart Gillard', 'Mike Herro and David Strauss', 'January25,2006', '2T6162', '2.70'], ['58', '13', '"The Wind That Blew My Heart Away"', 'David Jackson', 'Stacy Rukeyser', 'February1,2006', '2T6163', '3.01'], ['59', '14', '"All Tomorrow\'s Parties"', 'David Paymer', 'Anna Lotto', 'February8,2006', '2T6164', '2.89'], ['60', '15', '"Just Watch the Fireworks"', 'Billy Dickson', 'James Stoteraux and Chad Fiveash', 'February15,2006', '2T6165', '2.85'], ['62', '17', '"Who Will Survive, and What Will Be Left of Them"', 'John Asher', 'Mark Schwahn', 'March29,2006', '2T6167', '2.82'], ['63', '18', '"When it Isn\'t Like it Should Be"', 'Paul Johansson', 'R. Lee Fleming, Jr.', 'April5,2006', '2T6168', '2.93'], ['65', '20', '"Everyday is a Sunday Evening"', 'Billy Dickson', 'Mark Schwahn', 'April19,2006', '2T6170', '2.67'], ['66', '21', '"Over the Hills and Far Away"', 'Thomas J. Wright', 'Mark Schwahn', 'April26,2006', '2T6171', '2.87']]}