Description of problem:
On a pretty clean/standard RHEL/EPEL installation:
# yum install pisg
Loaded plugins: langpacks, product-id, subscription-manager
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
epel/x86_64/metalink                                                             |  22 kB  00:00:00     
epel                                                                             | 4.3 kB  00:00:00     
rhel-7-server-extras-rpms                                                        | 2.9 kB  00:00:00     
rhel-7-server-rpms                                                               | 3.7 kB  00:00:00     
(1/5): epel/x86_64/group_gz                                                      | 170 kB  00:00:00     
(2/5): epel/x86_64/updateinfo                                                    | 572 kB  00:00:00     
(3/5): epel/x86_64/primary_db                                                    | 4.2 MB  00:00:00     
(4/5): rhel-7-server-extras-rpms/x86_64/primary_db                               |  97 kB  00:00:06     
(5/5): rhel-7-server-rpms/7Server/x86_64/primary_db                              |  21 MB  00:00:10     
(1/2): rhel-7-server-extras-rpms/x86_64/updateinfo                               |  57 kB  00:00:00     
(2/2): rhel-7-server-rpms/7Server/x86_64/updateinfo                              | 1.2 MB  00:00:02     
Resolving Dependencies
--> Running transaction check
---> Package pisg.noarch 0:0.73-11.el7 will be installed
--> Processing Dependency: perl(Text::Iconv) for package: pisg-0.73-11.el7.noarch
--> Finished Dependency Resolution
Error: Package: pisg-0.73-11.el7.noarch (epel)
           Requires: perl(Text::Iconv)
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest


Seems like broken/missing dependencies.