Question: what is a code white in a hospital in canada
[{'answer': 'Aggression', 'provenance': [{'wikipedia_id': '7562669', 'title': 'Hospital emergency codes', 'start_paragraph_id': 30, 'start_character': 24, 'end_paragraph_id': 30, 'end_character': 34, 'bleu_score': 1.0, 'section': 'Section::::Standardised color codes.:Canada.:British Columbia.\n'}]}]