sessions
========
{
    type: 'SessionTemplate',
    title: '',
    description: '',
    plannedDate: '', /* ISO UTC datetime */
    accounts: [ /* Account ids */ ]
}

{
    type: 'SessionInstance',
    title: '',
    description: '',
    publishedDate: '', /* ISO UTC datetime */
    accounts: [ /* Account ids */ ]
}

survey
======
{
    type: 'Survey'
    title: '',
    description: '',
    questions: [ /* Question ids */ ]
}

question
========
{
    type: 'Question'
    title: '',
    description: '',
    topic: '',
    categories: [],
    content: [{ type:'contentTypeId', /* custom content element fields */ } /* and more ... */]
}