Question: who discovered that neural communication between cells occurs through chemicals
[{'answer': 'Charles Sherrington'}, {'provenance': [{'wikipedia_id': '5654027', 'title': 'Synapse', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12810612979456909465}, 'section': 'Section::::Abstract.'}]}, {}, {'provenance': [{'wikipedia_id': '664173', 'title': 'Edgar Adrian', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Charles Sherrington', 'Edgar Douglas Adrian, 1st Baron Adrian (30 November 1889 4 August 1977) was an English electrophysiologist and recipient of the 1932 Nobel Prize for Physiology']}}]}]