Question: who discovered the first skull of a fossil ape on rusinga island
[{'answer': 'Mary Leakey', 'provenance': [{'wikipedia_id': '3410585', 'title': 'Rusinga Island', 'start_paragraph_id': 8, 'start_character': 168, 'end_paragraph_id': 8, 'end_character': 179, 'bleu_score': 1.0, 'section': 'Section::::Palaeontology.\n'}]}, {'provenance': [{'wikipedia_id': '3410585', 'title': 'Rusinga Island', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 1161, 'bleu_score': 0.988603523410381, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18062411011542703430}, 'section': 'Section::::Palaeontology.\n'}]}]