Question: australia's great barrier reef as well as low coral islands in the pacific are vulnerable to
[{'answer': 'thermal stress', 'provenance': [{'wikipedia_id': '70983', 'title': 'Great Barrier Reef', 'start_paragraph_id': 29, 'start_character': 426, 'end_paragraph_id': 29, 'end_character': 440, 'bleu_score': 1.0, 'section': 'Section::::Environmental threats.:Climate change.\n'}]}, {'provenance': [{'wikipedia_id': '70983', 'title': 'Great Barrier Reef', 'start_paragraph_id': 29, 'start_character': 0, 'end_paragraph_id': 29, 'end_character': 440, 'bleu_score': 0.8823243801514211, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6871066040674450830}, 'section': 'Section::::Environmental threats.:Climate change.\n'}]}]