Question: at what point in the cell cycle does dna replication occur
[{'answer': 'Synthesis', 'provenance': [{'wikipedia_id': '7252', 'title': 'Cell cycle', 'start_paragraph_id': 4, 'start_character': 78, 'end_paragraph_id': 4, 'end_character': 87, 'bleu_score': 1.0, 'section': 'Section::::Phases.\n'}]}]