Question: who wrote the song kadam kadam badhaye ja khusi k geet gaye ja
[{'answer': 'Pt . Vanshidhar Shukla', 'provenance': [{'wikipedia_id': '13033558', 'title': 'Qadam Qadam Badaye Ja', 'start_paragraph_id': 1, 'start_character': 147, 'end_paragraph_id': 1, 'end_character': 172, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13033558', 'title': 'Qadam Qadam Badaye Ja', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 525, 'bleu_score': 0.9458134147569861, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9141914455037038650}, 'section': 'Section::::Abstract.'}]}]