Question: who discover the interfaces that mark the boundary between the crust and mantle
[{'answer': 'Andrija Mohorovičić', 'provenance': [{'wikipedia_id': '375826', 'title': 'Mohorovičić discontinuity', 'start_paragraph_id': 2, 'start_character': 49, 'end_paragraph_id': 2, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '375826', 'title': 'Mohorovičić discontinuity', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 441, 'bleu_score': 0.9712154609069981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 816687709219832698}, 'section': 'Section::::Abstract.'}]}]