user: Question: What was the Breeder's Cup Friday attendance for the year the Breeder's Cup Saturday had 52,987?
Columns: ['Year', 'Kentucky Derby', 'The Preakness Stakes', 'Kentucky Oaks', 'Belmont Stakes', 'Travers Stakes', 'Breeders Cup Saturday', 'Breeders Cup Friday']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [2013.0, 151616.0, '117,203', '113,280', '47,562', 't.b.a.', 't.b.a.', 't.b.a.']
SQL:

assistant: SELECT "Breeders Cup Friday" FROM "Table" WHERE "Breeders Cup Saturday" = '52,987';