Question: what's the longest running cartoon network show
[{'answer': 'Ed , Edd n Eddy', 'provenance': [{'wikipedia_id': '306392', 'title': 'Ed, Edd n Eddy', 'start_paragraph_id': 55, 'start_character': 26, 'end_paragraph_id': 55, 'end_character': 41, 'bleu_score': 1.0, 'section': 'Section::::Merchandise.\n'}]}, {'provenance': [{'wikipedia_id': '306392', 'title': 'Ed, Edd n Eddy', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 550, 'bleu_score': 0.845509478669871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18003486514530980411}, 'section': 'Section::::Abstract.'}]}]