Question: states that two species cannot coexist in the same niche indefinitely
[{'answer': 'competitive exclusion principle', 'provenance': [{'wikipedia_id': '4301692', 'title': 'Niche differentiation', 'start_paragraph_id': 1, 'start_character': 427, 'end_paragraph_id': 1, 'end_character': 458, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4301692', 'title': 'Niche differentiation', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 638, 'bleu_score': 0.608652085993448, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1112728833158019556}, 'section': 'Section::::Abstract.'}]}]