[Fedora-electronic-lab] yum groupinstall 'Electronic Lab' failed on CentOS5 with EPEL repo enabled

[Ryan J M]

root at xxx ~ > yum groupinstall 'Electronic Lab'
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * epel: ftp.yz.yamagata-u.ac.jp
 * rpmforge: ftp-stud.fht-esslingen.de
Setting up Group Process
Checking for new repos for mirrors
Warning: Group Electronic Lab does not exist.
No packages in any requested group available to install or update

root at xxx ~ >


-- root at xxx ~ > yum list | grep -i verilog
emacs-verilog-mode.noarch                  531-1.el5                   epel
iverilog.i386                              0.9.20070608-1.el5          epel
iverilog-devel.i386                        0.9.20070608-1.el5          epel
perl-Hardware-Verilog-Parser.noarch        0.13-1.el5                  epel
perl-Text-EP3-Verilog.noarch               1.00-1.2.el5.rf             rpmforge
perl-Verilog.i386                          3.212-1.el5                 epel
perl-Verilog-Readmem.noarch                0.04-1.el5                  epel


Is it possible for yum groupinstall?

Thanks


FIXME if it is wrong.