Question: who invented the red and yellow card in football
[{'answer': 'Kenneth George Aston', 'provenance': [{'wikipedia_id': '716053', 'title': 'Ken Aston', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '716053', 'title': 'Ken Aston', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 243, 'bleu_score': 0.907305276673332, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7455198471052885022}, 'section': 'Section::::Abstract.'}]}]