<http://schema.org/description>
"This course structure works well for material that needs to be learned in a prescribed order."^^<http://www.w3.org/2001/XMLSchema#string>
<https://en-us.help.blackboard.com/Learn/9.1_Older_Versions/9.1_2014_and_2015/Instructor/050_Course_Customization/040_Course_Structures/020_Selecting_Course_Structure/Course_Structure_Blackboard_Classic>