How to read prj file to get CRS when reading the shape file?

I have a folder with many shape files in many CRSs. When I read each file using "FeatureReader", I can use CoordinateSystemExtractor to retrieve the feature 's CRS, but the returns are not very useful as they are not standard ESRI coordinate system names. Is there a way for FME read the associated prj file and get the standard coordinate system name that I can attached to the feature as a new attribute?