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

### Instruction:
How many numbers were listed under Silver Medals for Portsmouth HS?

### Inputs:
table_name: table, columns: ['Ensemble', 'Gold Medals', 'Silver Medals', 'Bronze Medals', 'Total Medals']

### Response:
SELECT COUNT Silver Medals FROM table WHERE Ensemble = Portsmouth HS