Changed GHOPComment model to inherit from base model. All the properties are specific to the GHOPComment model. The GHOPComment model is also made ID based. Changes changes property from StringProperty to StringListProperty.

from django.conf.urls.defaults import *

urlpatterns = patterns('',
    (r'^$', 'examples.views.index'),
    (r'^hello/', include('examples.hello.urls')),
)