Question: what does a ferrite core do on a cable
[{'answer': 'suppresses high frequency noise', 'provenance': [{'wikipedia_id': '998595', 'title': 'Ferrite bead', 'start_paragraph_id': 1, 'start_character': 69, 'end_paragraph_id': 1, 'end_character': 100, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '998595', 'title': 'Ferrite bead', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 373, 'bleu_score': 0.9657992495762461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16943518793659647012}, 'section': 'Section::::Abstract.'}]}]