Question: what does tb mean in baseball box score
[{'answer': 'total bases', 'provenance': [{'wikipedia_id': '1005639', 'title': 'Box score (baseball)', 'start_paragraph_id': 22, 'start_character': 16, 'end_paragraph_id': 22, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::Box score.\n'}]}, {'provenance': [{'wikipedia_id': '1005639', 'title': 'Box score (baseball)', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 212, 'bleu_score': 0.953991849837532, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10322214601822000386}, 'section': 'Section::::Box score.\n'}]}]