user: Question: What was the score for the match that had the result of Hunter Mariners def. Castleford Tigers?
Columns: ['Date', 'Result', 'Score', 'Stadium', 'City', 'Crowd']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['13 June 1997', 'Adelaide Rams def. Leeds Rhinos', '34-8', 'Adelaide Oval', 'Adelaide', 14630.0]
SQL:

assistant: SELECT "Score" FROM "Table" WHERE "Result" = 'Hunter Mariners def. Castleford Tigers';