Identify and classify the type of mistake that was made.
He called his mom his father.
Mixing up the words 'mom' and 'father' (Semantic Error).
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Identify and classify the type of mistake that was made.

### Response:
Mixing up the words 'mom' and 'father' (Semantic Error).