Question: who wrote the song saare jahan se acha
[{'answer': 'Muhammad Iqbal', 'provenance': [{'wikipedia_id': '529189', 'title': 'Sare Jahan se Accha', 'start_paragraph_id': 1, 'start_character': 161, 'end_paragraph_id': 1, 'end_character': 175, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]