Question: the atomic number of indium which belongs to 5th period is
[{'answer': '49'}, {'provenance': [{'wikipedia_id': '161278', 'title': 'Period 5 element', 'start_paragraph_id': 51, 'start_character': 0, 'end_paragraph_id': 51, 'end_character': 665, 'bleu_score': 0.943944530922713, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7180445389426204668}, 'section': 'Section::::p-block elements.:Indium.\n'}]}, {'provenance': [{'wikipedia_id': '161278', 'title': 'Period 5 element', 'section': 'Section::::d-block elements.:Cadmium.\n', 'start_paragraph_id': 48, 'end_paragraph_id': 48, 'meta': {'evidence_span': ['Indium is a chemical element with the symbol In and atomic number 49.', 'Indium is a chemical element with the symbol In and atomic number 49.', 'Indium is a chemical element with the symbol In and atomic number 49']}}]}, {'provenance': [{'wikipedia_id': '14749', 'title': 'Indium', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Indium is a chemical element with the symbol\xa0In and atomic number 49. Indium is the softest metal that is not considered to be an alkali metal.', 'Indium is a chemical element with the symbol\xa0In and atomic number 49.', 'Indium is a chemical element with the symbol\xa0In and atomic number 49. Indium is the softest metal that is not considered to be an alkali metal.']}}]}]