Question: who invent the first stock tricker in 1867
[{'answer': 'Edward Augustin Calahan', 'provenance': [{'wikipedia_id': '34865354', 'title': 'Edward A. Calahan', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '34865354', 'title': 'Edward A. Calahan', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 160, 'bleu_score': 0.7801270245332921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2171592990866749054}, 'section': 'Section::::Abstract.'}]}]