Question: who broadened the doctrine of philosophy of language
[{'answer': 'Søren Kierkegaard', 'provenance': [{'wikipedia_id': '6880370', 'title': 'Philosophy of language', 'start_paragraph_id': 18, 'start_character': 50, 'end_paragraph_id': 18, 'end_character': 67, 'bleu_score': 1.0, 'section': 'Section::::History.:Modern philosophy.\n'}]}, {'provenance': [{'wikipedia_id': '6880370', 'title': 'Philosophy of language', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 315, 'bleu_score': 0.9603762111511761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3985381343070845555}, 'section': 'Section::::History.:Modern philosophy.\n'}]}]