Table: wrestling_titles
Columns: championship
champion_s
previous_champion_s
date_won
location

Question: Who was the previous champion of the title won on July 7, 2010?
SQL: SELECT "previous_champion_s" FROM wrestling_titles WHERE "date_won" = 'july 7, 2010'

Question: When did Bonecrusher win the championship at Bayamón, Puerto Rico?
SQL: SELECT "date_won" FROM wrestling_titles WHERE "location" = 'bayamón, puerto rico' AND "champion_s" = 'bonecrusher'

Question: Who is the champion of the title previously held by Lash?
SQL: SELECT "champion_s" FROM wrestling_titles WHERE "previous_champion_s" = 'lash'

Question: Which championship was won on July 7, 2010?
SQL: SELECT "championship" FROM wrestling_titles WHERE "date_won" = 'july 7, 2010'