Question: where are ball and socket joints found in the human body
[{'answer': 'the hip', 'provenance': [{'wikipedia_id': '3596490', 'title': 'Ball-and-socket joint', 'start_paragraph_id': 4, 'start_character': 51, 'end_paragraph_id': 4, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Examples.\n'}]}, {'answer': 'the shoulder', 'provenance': [{'wikipedia_id': '3596490', 'title': 'Ball-and-socket joint', 'start_paragraph_id': 4, 'start_character': 165, 'end_paragraph_id': 4, 'end_character': 177, 'bleu_score': 1.0, 'section': 'Section::::Examples.\n'}]}, {'provenance': [{'wikipedia_id': '3596490', 'title': 'Ball-and-socket joint', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 361, 'bleu_score': 0.744857533843513, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17298614815175529435}, 'section': 'Section::::Examples.\n'}]}]