Question: what part of a spark plug breaks glass
[{'answer': 'the ceramic portion', 'provenance': [{'wikipedia_id': '3488365', 'title': 'Ninja rocks', 'start_paragraph_id': 1, 'start_character': 73, 'end_paragraph_id': 1, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3488365', 'title': 'Ninja rocks', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 459, 'bleu_score': 0.9748377259086851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15002691587776174562}, 'section': 'Section::::Abstract.'}]}]