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

### Instruction:
What is the lowest week that has 7:15 p.m. as the time (cst) and fedexfield as the game site?

### Inputs:
table_name: table, columns: ['Week', 'Date', 'Time (CST)', 'Opponent', 'Result', 'Game site', 'Record', 'NFL Recap']

### Response:
SELECT MIN Week FROM table WHERE Time (CST) = 7:15 p.m. AND Game site = fedexfield