user: Question: How many wrestlers are recorded for the chamber that's method of elimination was Pinned after being hit by a lead pipe? 
Columns: ['Eliminated', 'Wrestler', 'Entered', 'Eliminated by', 'Method of elimination', 'Time']
Types: ['real', 'text', 'real', 'text', 'text', 'text']
Sample row: [1.0, 'Randy Orton', 4.0, 'Ted DiBiase', 'Pinned after being hit by a lead pipe', '24:02']
SQL:

assistant: SELECT COUNT("Wrestler") FROM "Table" WHERE "Method of elimination" = 'Pinned after being hit by a lead pipe';