Question: when was email invented and who is considered the inventor
[{'answer': '1971', 'provenance': [{'wikipedia_id': '904338', 'title': 'Ray Tomlinson', 'start_paragraph_id': 1, 'start_character': 201, 'end_paragraph_id': 1, 'end_character': 205, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': "Raymond Samuel `` Ray '' Tomlinson"}, {'provenance': [{'wikipedia_id': '904338', 'title': 'Ray Tomlinson', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 775, 'bleu_score': 0.923357652619415, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12900918219756521540}, 'section': 'Section::::Abstract.'}]}]