original_query: What is the purpose of the Recovery Operations Center (ROC) in relation to the American Recovery and Reinvestment Act?
  What is the most relevant chunk to answer the query?
query: What is the purpose of the Recovery Operations Center (ROC) in relation to the American Recovery and Reinvestment Act?
answer: The Recovery Operations Center (ROC) used Palantir software to integrate transactional data with open-source and private data sets to detect and investigate fraud and abuse in the American Recovery and Reinvestment Act.