Question: who came up with the triple bottom line
[{'answer': 'John Elkington', 'provenance': [{'wikipedia_id': '316929', 'title': 'Triple bottom line', 'start_paragraph_id': 1, 'start_character': 311, 'end_paragraph_id': 1, 'end_character': 325, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '316929', 'title': 'Triple bottom line', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 366, 'bleu_score': 0.9645876452711911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9720795349020383087}, 'section': 'Section::::Abstract.'}]}]