Table: championship_history
Columns: championship
current_champion_s
previous_champion_s
date_won
location

Question: In which championship had a previous champion of "defeated Justin Corino in tournament final"?
SQL: SELECT "championship" FROM championship_history WHERE "previous_champion_s" = 'defeated justin corino in tournament final'

Question: Which location had previous champions of Mike Webb and Nick Fahrenheit?
SQL: SELECT "location" FROM championship_history WHERE "previous_champion_s" = 'mike webb and nick fahrenheit'

Question: Who were the previous champions from the event won on May 1, 2010?
SQL: SELECT "previous_champion_s" FROM championship_history WHERE "date_won" = 'may 1, 2010'

Question: Who is the current champion for the event in Beverly, MA, with previous champions of Mike Webb and Nick Fahrenheit?
SQL: SELECT "current_champion_s" FROM championship_history WHERE "location" = 'beverly, ma' AND "previous_champion_s" = 'mike webb and nick fahrenheit'

Question: Who is the current champion in the NECW Heavyweight Championship?
SQL: SELECT "current_champion_s" FROM championship_history WHERE "championship" = 'necw heavyweight champion'

Question: Which location held the Iron 8 Championship tournament?
SQL: SELECT "location" FROM championship_history WHERE "championship" = 'iron 8 championship tournament'