Question: what is the pantone color for tiffany blue
[{'answer': 'PMS number 1837', 'provenance': [{'wikipedia_id': '5252620', 'title': 'Tiffany Blue', 'start_paragraph_id': 2, 'start_character': 151, 'end_paragraph_id': 2, 'end_character': 166, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5252620', 'title': 'Tiffany Blue', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 225, 'bleu_score': 0.500192611461431, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4571953187797936870}, 'section': 'Section::::Abstract.'}]}]