Question: who started the slogan of right to work in france
[{'answer': 'Louis Blanc', 'provenance': [{'wikipedia_id': '783318', 'title': 'Right to work', 'start_paragraph_id': 7, 'start_character': 73, 'end_paragraph_id': 7, 'end_character': 84, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '783318', 'title': 'Right to work', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 1110, 'bleu_score': 0.9758151891653221, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3703379561138725917}, 'section': 'Section::::History.\n'}]}]