Question: most exotic species are introduced into a new environment accidentally as a result of
[{'answer': 'human travel', 'provenance': [{'wikipedia_id': '394815', 'title': 'Introduced species', 'start_paragraph_id': 34, 'start_character': 101, 'end_paragraph_id': 34, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Nature of introductions.:Unintentional introductions.\n'}]}, {'provenance': [{'wikipedia_id': '394815', 'title': 'Introduced species', 'start_paragraph_id': 34, 'start_character': 66, 'end_paragraph_id': 34, 'end_character': 1343, 'bleu_score': 0.86589196364173, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4193556051167956767}, 'section': 'Section::::Nature of introductions.:Unintentional introductions.\n'}]}]