<learningObjectMap>Use a <learningObjectMap> to create standalone aggregations of
<learningContent> together with its supporting plan, overview,
summary, and assessments, according to the needs identified by the learning goals and
objectives. The <learningObjectMap> references one and only one
<learningObject>. Any <topicref> elements that
occur before the <learningObject> are intended to be resource-only
references such as key definitions.
Category: Learning and training: map types