What is the second oldest university located in Cambridge?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q45412', 'id': 0, 'label': 'Coimbra'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q49111', 'id': 1, 'label': 'Cambridge'}, {'type': 'INTERNAL', 'name_': 'Q2814', 'id': 2, 'label': 'Halle (Saale)'}, {'type': 'INTERNAL', 'name_': 'Q94770109', 'id': 3, 'label': 'Elisabeth Rosenberg'}], 'links': [{'name_': 'P190', 'source': 2, 'target': 0, 'label': 'twinned administrative body'}, {'name_': 'P20', 'source': 3, 'target': 1, 'label': 'place of death'}, {'name_': 'P19', 'source': 3, 'target': 2, 'label': 'place of birth'}]}