fixes a bug where there were duplicated sentences
fixes a bug where there were duplicated sentences

Change-Id: Id8375e65d0f9d6aa37e3c43be10c8a23e51d07fe
Closes-Bug: 1295089

kairoaraujo/openstack-manuals,potsmaster/openstack-manuals,gongysh2004/openstack-manual,Akasurde/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,kairoaraujo/openstack-manuals,gongysh2004/openstack-manual,saeki-masaki/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,potsmaster/openstack-manuals,Akasurde/openstack-manuals,saeki-masaki/openstack-manuals