Proofread the following text
system
โขขก กกช นนัฑ
user
{'corrected_text': 'โขก', 'errors': [{'word': 'โขขก', 'corrected': 'โขก', 'start_idx': 0, 'end_idx': 275333}]} {'corrected_text': 'กช', 'errors': [{'word': 'กกช', 'corrected': 'กช', 'start_idx': 0, 'end_idx': 275333}]} {'corrected_text': 'นัฑ', 'errors': [{'word': 'นนัฑ', 'corrected': 'นัฑ', 'start_idx': 0, 'end_idx': 275333}]}
assistant