Question: what distinctive characteristics does the gothic style have
[{'answer': 'pointed arch', 'provenance': [{'wikipedia_id': '54044', 'title': 'Gothic architecture', 'start_paragraph_id': 2, 'start_character': 576, 'end_paragraph_id': 2, 'end_character': 588, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'ribbed vault'}, {'answer': 'flying buttress', 'provenance': [{'wikipedia_id': '54044', 'title': 'Gothic architecture', 'start_paragraph_id': 2, 'start_character': 70, 'end_paragraph_id': 2, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]