Question: who invented the train to station communication system
[{'answer': 'Granville Tailer Woods', 'provenance': [{'wikipedia_id': '395193', 'title': 'Granville Woods', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '395193', 'title': 'Granville Woods', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 530, 'bleu_score': 0.948891840545617, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14678851727989142145}, 'section': 'Section::::Abstract.'}]}]