Question: which is the first artificial produced element in the periodic table
[{'answer': 'technetium', 'provenance': [{'wikipedia_id': '29365', 'title': 'Synthetic element', 'start_paragraph_id': 3, 'start_character': 175, 'end_paragraph_id': 3, 'end_character': 185, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '29365', 'title': 'Synthetic element', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 629, 'bleu_score': 0.8670144058256171, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15661552169525514570}, 'section': 'Section::::History.:Technetium.\n'}]}]