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

### Instruction:
Which Yellow Cards has a Season of 1999/2000?

### Inputs:
table_name: table, columns: ['Season', 'Games', 'Yellow Cards', 'Red Cards', 'Average Cards a game']

### Response:
SELECT AVG Yellow Cards FROM table WHERE Season = 1999/2000