Question: when do penny and leonard first get together
[{'answer': 'The Recombination Hypothesis', 'provenance': [{'wikipedia_id': '36308320', 'title': 'The Recombination Hypothesis', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '36308320', 'title': 'The Recombination Hypothesis', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 1126, 'bleu_score': 0.968853353782895, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1830357779231394877}, 'section': 'Section::::Production.\n'}]}]