user: Question: How many age entries had a weight of 10-7 and an owner of Double Octagon Partnership?
Columns: ['Starting price', 'Number', 'Name', 'Age', 'Weight (st, lb)', 'Jockey', 'Trainer', 'Owner', 'Colours']
Types: ['text', 'real', 'text', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: ['50/1', 4.0, 'Therealbandit', 9.0, '11-9', 'Richard Johnson', 'Martin Pipe', 'David Johnson', 'Blue with green sleeves and red cap']
SQL:

assistant: SELECT COUNT("Age") FROM "Table" WHERE "Weight (st, lb)" = '10-7' AND "Owner" = 'Double Octagon Partnership';