Question: what type of skeleton does a spider have
[{'answer': 'an exoskeleton', 'provenance': [{'wikipedia_id': '19827221', 'title': 'Arthropod', 'start_paragraph_id': 1, 'start_character': 112, 'end_paragraph_id': 1, 'end_character': 126, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]