Question: which institution is the primary actor in defining civil liberties in the united states
[{'answer': 'the Supreme Court', 'provenance': [{'wikipedia_id': '37476', 'title': 'Civil liberties', 'start_paragraph_id': 12, 'start_character': 104, 'end_paragraph_id': 12, 'end_character': 121, 'bleu_score': 1.0, 'section': 'Section::::Asia.:India.\n'}]}, {'provenance': [{'wikipedia_id': '37476', 'title': 'Civil liberties', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 463, 'bleu_score': 0.9757530668325981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8154584020492763199}, 'section': 'Section::::Asia.:India.\n'}]}]