Question: who is the scientist that devised the present chemical symbol
[{'answer': 'Berzelius', 'provenance': [{'wikipedia_id': '23701666', 'title': 'Jöns Jacob Berzelius', 'start_paragraph_id': 0, 'start_character': 11, 'end_paragraph_id': 0, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23701666', 'title': 'Jöns Jacob Berzelius', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 561, 'bleu_score': 0.947703439108541, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11845115747254240939}, 'section': 'Section::::Abstract.'}]}]