Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many different season have an Army - Navy score of 10 dec. 2016 at Baltimore, MD (M&T Bank Stadium)?

### Inputs:
table_name: table, columns: ['Season', 'Trophy Winner', 'Air Force – Navy score', 'Air Force – Army score', 'Army – Navy score']

### Response:
SELECT COUNT Season FROM table WHERE Army – Navy score = 10 Dec. 2016 at Baltimore, MD (M&T Bank Stadium)