user: Question: What is the sum of Long for Derrick Locke?
Columns: ['Name', 'GP-GS', 'Gain', 'Loss', 'Long', 'Avg/G']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['Derrick Locke', '7-0', 319.0, 16.0, 68.0, 43.3]
SQL:

assistant: SELECT SUM("Long") FROM "Table" WHERE "Name" = 'Derrick Locke';