Question: what is the full form of gdp in economics
[{'answer': 'Gross domestic product', 'provenance': [{'wikipedia_id': '12594', 'title': 'Gross domestic product', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]