You are given the conttent of a table in the input (row by row). Generate an unambiguous question based on the information present in the table, such that: 1) It's answer is unique and is in the given table, 2) Its answer is a contiguous text span from the table. Avoid creating questions that can be answered correctly without reading/understanding the table

Table: ['Position', 'Player', 'Free agency tag', 'Date signed', '2013 team']. ['QB', 'Josh McCown', 'UFA', 'March 29', 'Chicago Bears']. ['RB', 'Kahlil Bell', 'UFA', 'August 11', 'New York Jets']. ['OG', 'Lance Louis', 'UFA', 'March 27', 'Miami Dolphins']. ['OG', 'Chris Spencer', 'UFA', 'April 1', 'Tennessee Titans']. ['OG', 'Chilo Rachal', 'UFA', 'April 10', 'Arizona Cardinals']. ['OT', 'Jonathan Scott', 'UFA', 'March 25', 'Chicago Bears']. ['DE', 'Israel Idonije', 'UFA', 'June 25', 'Detroit Lions']. ['DT', 'Amobi Okoye', 'UFA', '-', '-']. ['LB', 'Geno Hayes', 'UFA', 'March 13', 'Jacksonville Jaguars']. ['LB', 'Nick Roach', 'UFA', 'March 15', 'Oakland Raiders']. ['CB', 'Zack Bowman', 'UFA', 'March 15', 'Chicago Bears']. ['CB', 'D. J. Moore', 'UFA', 'March 19', 'Carolina Panthers']. ['S', 'Troy Nolan', 'UFA', 'July 29', 'Tampa Bay Buccaneers']. ['K', 'Olindo Mare', 'UFA', '-', '-']
what are all the dates signed?

Table: ['Week', 'Date', 'Opponent', 'Result', 'Record', 'Game site']. ['1', 'March 31, 2006', 'Louisville Fire', 'W 45-37', '1-0', 'Wachovia Arena']. ['2', 'Bye', 'Bye', 'Bye', 'Bye', 'Bye']. ['3', 'April 14, 2006', 'Albany Conquest', 'W 55-48 (OT)', '2-0', 'Times Union Center']. ['4', 'April 21, 2006', 'South Georgia Wildcats', 'W 36-33', '3-0', 'Wachovia Arena']. ['5', 'April 29, 2006', 'Manchester Wolves', 'W 62-47', '4-0', 'Verizon Wireless Arena']. ['6', 'May 5, 2006', 'Green Bay Blizzard', 'W 42-27', '5-0', 'Wachovia Arena']. ['7', 'May 13, 2006', 'Tulsa Talons', 'L 53-37', '5-1', 'Wachovia Arena']. ['8', 'May 20, 2006', 'Macon Knights', 'W 38-22', '6-1', 'Macon Coliseum']. ['9', 'May 27, 2006', 'Manchester Wolves', 'L 48-28', '6-2', 'Wachovia Arena']. ['10', 'June 3, 2006', 'Louisville Fire', 'W 51-48', '7-2', 'Freedom Hall']. ['11', 'June 10, 2006', 'Albany Conquest', 'L 73-70', '7-3', 'Times Union Center']. ['12', 'June 17, 2006', 'Quad City Steamwheelers', 'W 55-52', '8-3', 'Wachovia Arena']. ['13', 'June 24, 2006', 'Green Bay Blizzard', 'L 65-35', '8-4', 'Resch Center']. ['14', 'Bye', 'Bye', 'Bye', 'Bye', 'Bye']. ['15', 'July 8, 2006', 'Florida Firecats', 'L 56-51', '8-5', 'Wachovia Arena']. ['16', 'July 14, 2006', 'Manchester Wolves', 'L 45-14', '8-6', 'Verizon Wireless Arena']. ['17', 'July 22, 2006', 'Quad City Steamwheelers', 'L 55-34', '8-7', 'i wireless Center']. ['18', 'July 29, 2006', 'Albany Conquest', 'W 54-27', '9-7', 'Wachovia Arena']
what are the dates for the 2006 wilkes-barre/scranton pioneers season?

Table: ['Year', 'Competition', 'Venue', 'Position', 'Notes']. ['1994', 'Commonwealth Games', 'Victoria, Canada', '6th', '400 m h']. ['1995', 'World Championships', 'Gothenburg, Sweden', '6th', '400 m h']. ['1997', 'World Championships', 'Athens, Greece', '7th', '4x400 m relay']. ['1998', 'Commonwealth Games', 'Kuala Lumpur, Malaysia', '3rd', '400 m h']. ['1998', 'African Championships', 'Dakar, Senegal', '2nd', '400 m h']. ['1999', 'All-Africa Games', 'Johannesburg, South Africa', '2nd', '400 m h']
what races did ken harden run?