Question: who sings the song ooh child things are going to get easier
[{'answer': 'Five Stairsteps', 'provenance': [{'wikipedia_id': '20251190', 'title': 'O-o-h Child', 'start_paragraph_id': 1, 'start_character': 73, 'end_paragraph_id': 1, 'end_character': 88, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]