<http://schema.org/description>
"The following articles describe how to change default runlevel from from Non-GUI (text-based) mode to GUI and from GUI to Non-GUI in CentOS 7 / RHEL 7."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ehowstuff.com/change-default-runlevel-centos-7-rhel-7/>