Question: who composed the famous song 'sare 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.'}]}, {'provenance': [{'wikipedia_id': '529189', 'title': 'Sare Jahan se Accha', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 606, 'bleu_score': 0.7833804356622721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15276130048294904790}, 'section': 'Section::::Abstract.'}]}]