Question: what is stig in childrens novel stig of the dump
[{'answer': 'a caveman', 'provenance': [{'wikipedia_id': '732229', 'title': 'Stig of the Dump', 'start_paragraph_id': 3, 'start_character': 280, 'end_paragraph_id': 3, 'end_character': 289, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '732229', 'title': 'Stig of the Dump', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 397, 'bleu_score': 0.972407137066537, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6018368230389205735}, 'section': 'Section::::Plot.\n'}]}]