user: Question: How many caps have a Date of Birth (Age) of 15 july 1981?
Columns: ['Player', 'Position', 'Date of Birth (Age)', 'Caps', 'Club/province']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Rui Cordeiro', 'Prop', '14 October 1976', 39.0, 'Académica de Coimbra']
SQL:

assistant: SELECT SUM("Caps") FROM "Table" WHERE "Date of Birth (Age)" = '15 july 1981';