Relation rst#elaboration (pm#description_content/medium/container,pm#description_content/medium/container)  e.g., rst#subtype rst#property, rst#part
  exclusion:  rst#circumstance  rst#solution  rst#cause  rst#effect  rst#definition  rst#comparison  rst#means  rst#condition  rst#otherwise  rst#interpretation  rst#restatement  rst#summary  rst#theme  rst#contrast
  supertype:  rst#subject_matter_rhetorical_relation  connect to details for making a better description
  subtype:  rst#subtype (pm#description_content/medium/container,pm#description_content/medium/container)
  subtype:  rst#instance (pm#description_content/medium/container,pm#description_content/medium/container)
  subtype:  rst#illustration (pm#description_content/medium/container,pm#description_content/medium/container)
  subtype:  rst#attributive_relation__attributiverelation (pm#description_content/medium/container,pm#description_content/medium/container)
     subtype:  rst#property (pm#description_content/medium/container,pm#description_content/medium/container)
     subtype:  rst#attribute (pm#description_content/medium/container,pm#description_content/medium/container)
     subtype:  rst#possession (pm#description_content/medium/container,pm#description_content/medium/container)
  subtype:  rst#part (pm#description_content/medium/container,pm#description_content/medium/container)
  subtype:  rst#subtask (pm#description_content/medium/container,pm#description_content/medium/container)
  subtype:  rst#specialization (pm#description_content/medium/container,pm#description_content/medium/container)