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

### Instruction:
What is the highest Psychological Dependence, when Pleasure is less than 2.3, when Drug is "Cannabis", and when Physical Dependence is less than 0.8?

### Inputs:
table_name: table, columns: ['Drug', 'Mean', 'Pleasure', 'Psychological dependence', 'Physical dependence']

### Response:
SELECT MAX Psychological dependence FROM table WHERE Pleasure < 2.3 AND Drug = cannabis AND Physical dependence < 0.8