Question: what does an em dash symbol look like
[{'answer': '--', 'provenance': [{'wikipedia_id': '18973788', 'title': 'Dash', 'start_paragraph_id': 145, 'start_character': 154, 'end_paragraph_id': 145, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Em dash.:Typographic details.:Approximating the em dash with two or three hyphens.\n'}]}]