user: Question: What is the tour Apps when the career caps show 15?
Columns: ['Name', 'Tests', 'Club', 'Career caps', 'Tour Apps', 'Position']
Types: ['text', 'real', 'text', 'real', 'real', 'text']
Sample row: ['A.W. Ross', 5.0, 'Sydney University', 20.0, 29.0, 'Full Back']
SQL:

assistant: SELECT "Tour Apps" FROM "Table" WHERE "Career caps" = 15.0;