And third, 1This <cite>(Ramshaw and Marcus, 1995)</cite> baseNP data set is available via ftp://ftp.cis.upenn.edu/pub/chunker/ 2Software for generating the data is available from http://lcg-www.uia.ac.be/conl199/npb/ with the FZ=I rate which is equal to (2*precision*recall)/(precision+recall).