Question: what does the symbol h stand for in chemistry
[{'answer': 'Hydrogen', 'provenance': [{'wikipedia_id': '63243', 'title': 'Symbol (chemistry)', 'start_paragraph_id': 15, 'start_character': 117, 'end_paragraph_id': 15, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Symbols for chemical elements.\n'}]}]