How many series are named "Lockdown"?
{'header': ['Series #', 'Episode #', 'Title', 'Directed by', 'Written by', 'Original air date'], 'page_title': '', 'section_title': '', 'caption': '', 'rows': [['11', '1', '"The Prophet"', 'Michael Robison', 'Eric Tuchman', 'June11,2007'], ['12', '2', '"The Homecoming"', 'Pat Williams', 'Tommy Thompson', 'June18,2007'], ['13', '3', '"The List is Life"', 'Pat Williams', 'Julie Plec', 'June25,2007'], ['14', '4', '"Balancing Act"', 'Michael Robison', 'Steven Lilien & Bryan Wynbrandt', 'July2,2007'], ['15', '5', '"Come to Your Senses"', 'Morgan Beggs', 'Chad Fiveash & James Patrick Stoteraux', 'July9,2007'], ['16', '6', '"Does Kyle Dream of Electric Fish?"', 'Chris Grismer', 'R.P. Gaborno & Chris Hollier', 'July16,2007'], ['17', '7', '"Free To Be You and Me"', 'Guy Norman Bee', 'Julie Plec', 'July23,2007'], ['18', '8', '"What\'s the Frequency, Kyle?"', 'Chris Grismer', 'Steven Lilien & Bryan Wynbrandt', 'July30,2007'], ['19', '9', '"Ghost in the Machine"', 'Guy Norman Bee', 'Eric Bress & J. Mackye Gruber', 'August6,2007'], ['20', '10', '"House of Cards"', 'Pat Williams', 'Chad Fiveash & James Patrick Stoteraux', 'August13,2007'], ['21', '11', '"Hands on a Hybrid"', 'Rachel Talalay', 'Bryan M. Holdman', 'August20,2007'], ['22', '12', '"Lockdown"', 'Michael Robison', 'Charley Dane & Julie Plec', 'August27,2007'], ['23', '13', '"Leap of Faith"', 'Rachel Talalay', 'Eric Tuchman', 'September3,2007'], ['24', '14', '"To C.I.R., With Love"', 'Guy Norman Bee', 'Chad Fiveash & James Patrick Stoteraux', 'January14,2008'], ['25', '15', '"The Future\'s So Bright, I Gotta Wear Shades"', 'Chris Grismer', 'Steven Lilien & Bryan Wynbrandt', 'January21,2008'], ['26', '16', '"Great Expectations"', 'John Kretchmer', 'Bryan M. Holdman', 'January28,2008'], ['27', '17', '"Grounded"', 'Michael DeCarlo', 'R.P. Gaborno & Chris Hollier', 'February4,2008'], ['28', '18', '"Between The Rack and a Hard Place"', 'James Head', 'Chad Fiveash & James Patrick Stoteraux', 'February11,2008'], ['29', '19', '"First Cut Is the Deepest"', 'Michael Robison', 'David A. Weinstein', 'February18,2008'], ['30', '20', '"Primary Colors"', 'Peter DeLuise', 'Bryan M. Holdman', 'February25,2008'], ['31', '21', '"Grey Matters"', 'Michael Robison', 'Eric Tuchman', 'March3,2008'], ['32', '22', '"Hello..."', 'Peter DeLuise', 'Michael Berns', 'March10,2008']]}