Question: what type of eruption does nevado del ruiz produce
[{'answer': 'Plinian eruptions', 'provenance': [{'wikipedia_id': '292993', 'title': 'Nevado del Ruiz', 'start_paragraph_id': 2, 'start_character': 43, 'end_paragraph_id': 2, 'end_character': 60, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '292993', 'title': 'Nevado del Ruiz', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 787, 'bleu_score': 0.9726437923163631, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3710393808788255851}, 'section': 'Section::::Abstract.'}]}]