Question: Who constructed buildings in Rome that stood against the forces of Mark Anthony and Cleopatra in 31 BC, Marcus Vipsanius Agrippa or Vipsania Polla?
{'answer': 'most notably at the Battle of Actium in 31 BC against the forces of Mark Antony and Cleopatra.', 'supporting_facts': [['Vipsania Polla', 1], ['Marcus Vipsanius Agrippa', 1]]}