Question: who proposed a theory of evolution based on acquired characteristics
[{'answer': 'Jean - Baptiste Lamarck', 'provenance': [{'wikipedia_id': '187588', 'title': 'Lamarckism', 'start_paragraph_id': 1, 'start_character': 320, 'end_paragraph_id': 1, 'end_character': 343, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '187588', 'title': 'Lamarckism', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 964, 'bleu_score': 0.9541724938233, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7788191825157825199}, 'section': 'Section::::Abstract.'}]}]