Question: the great falls of paterson flows over what type of rock
[{'answer': 'basalt', 'provenance': [{'wikipedia_id': '602528', 'title': 'Great Falls (Passaic River)', 'start_paragraph_id': 5, 'start_character': 520, 'end_paragraph_id': 5, 'end_character': 526, 'bleu_score': 1.0, 'section': 'Section::::History.:Formation and early history.\n'}]}, {'provenance': [{'wikipedia_id': '602528', 'title': 'Great Falls (Passaic River)', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 580, 'bleu_score': 0.9788329837059241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16464776380392605359}, 'section': 'Section::::History.:Formation and early history.\n'}]}]