Question: which case was heard by largest ever constitution bench by 13 supreme court judges
[{'answer': 'Golaknath v. State of Punjab', 'provenance': [{'wikipedia_id': '10300882', 'title': 'Kesavananda Bharati v. State of Kerala', 'start_paragraph_id': 1, 'start_character': 469, 'end_paragraph_id': 1, 'end_character': 497, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10300882', 'title': 'Kesavananda Bharati v. State of Kerala', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 435, 'bleu_score': 0.9340633406994681, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8603026796787128841}, 'section': 'Section::::Judgment.\n'}]}]