Original sentence: AIP analyzes charity financial documents to identify charities that are financially efficient, and ones that are not, and publishes its findings.The ratings are grades ranging from A+ (best) to F (worst) and are based on analysis of charities' financial documents
Edited sentence: AIP carefully analyzes charity financial documents to identify the charities that are financially efficient, and the ones that are not, and publishes its findings.The ratings are grades ranging from A+ (best) to F (worst) and are based on deep analysis of charities' financial documents