Question: where does giant hogweed grow in the us
[{'answer': 'northeastern and northwestern', 'provenance': [{'wikipedia_id': '711848', 'title': 'Heracleum mantegazzianum', 'start_paragraph_id': 40, 'start_character': 244, 'end_paragraph_id': 40, 'end_character': 273, 'bleu_score': 1.0, 'section': 'Section::::Distribution.\n'}]}]