What was the first university founded in Oxford?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q34217', 'id': 0, 'label': 'Oxford'}, {'type': 'INTERNAL', 'name_': 'Q2256', 'id': 1, 'label': 'Birmingham'}, {'type': 'INTERNAL', 'name_': 'Q892', 'id': 2, 'label': 'J. R. R. Tolkien'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q7897276', 'id': 3, 'label': 'unparished area'}], 'links': [{'name_': 'P31', 'source': 1, 'target': 3, 'label': 'instance of'}, {'name_': 'P119', 'source': 2, 'target': 0, 'label': 'place of burial'}, {'name_': 'P551', 'source': 2, 'target': 1, 'label': 'residence'}]}