Evaluate the given piece of writing for grammar and style.
The instructions was diverse so that the GPT model can be evaluted effectivelly.
The sentence contains some grammatical errors. A corrected version would be "The instructions were diverse so that the GPT model could be evaluated effectively."
Complete the following task based on the instruction and optional input provided.### Instruction:
Evaluate the given piece of writing for grammar and style.

### Input:
The instructions was diverse so that the GPT model can be evaluted effectivelly.

### Output:
The sentence contains some grammatical errors. A corrected version would be "The instructions were diverse so that the GPT model could be evaluated effectively."