Question: who is the guy in the primitive technology videos
[{'answer': 'John Plant .', 'provenance': [{'wikipedia_id': '51703221', 'title': 'Primitive Technology', 'start_paragraph_id': 1, 'start_character': 49, 'end_paragraph_id': 1, 'end_character': 66, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51703221', 'title': 'Primitive Technology', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 314, 'bleu_score': 0.7748663286972071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14435539127605783600}, 'section': 'Section::::Abstract.'}]}]