Question: who was the shooter at columbine high school
[{'answer': 'Eric Harris', 'provenance': [{'wikipedia_id': '59627', 'title': 'Columbine High School massacre', 'start_paragraph_id': 1, 'start_character': 226, 'end_paragraph_id': 1, 'end_character': 237, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Dylan Klebold', 'provenance': [{'wikipedia_id': '59627', 'title': 'Columbine High School massacre', 'start_paragraph_id': 1, 'start_character': 242, 'end_paragraph_id': 1, 'end_character': 255, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]