Question: what type of business is common in east texas
[{'answer': 'patent holding companies', 'provenance': [{'wikipedia_id': '412645', 'title': 'East Texas', 'start_paragraph_id': 110, 'start_character': 52, 'end_paragraph_id': 110, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Economy.\n'}]}, {'provenance': [{'wikipedia_id': '412645', 'title': 'East Texas', 'start_paragraph_id': 110, 'start_character': 0, 'end_paragraph_id': 110, 'end_character': 191, 'bleu_score': 0.9383861709333501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8666521323608730277}, 'section': 'Section::::Economy.\n'}]}]