Question: is there an expiry date on nectar points
[{'answer': 'not normally', 'provenance': [{'wikipedia_id': '162922', 'title': 'Nectar loyalty card', 'start_paragraph_id': 16, 'start_character': 333, 'end_paragraph_id': 16, 'end_character': 345, 'bleu_score': 1.0, 'section': 'Section::::Redemption.\n'}]}, {'provenance': [{'wikipedia_id': '162922', 'title': 'Nectar loyalty card', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 461, 'bleu_score': 0.8769277187960761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8535371765788425129}, 'section': 'Section::::Redemption.\n'}]}]