code: public String getSourceOntology() {
      if (OntRelationMention_Type.featOkTst && ((OntRelationMention_Type)jcasType).casFeat_sourceOntology == null)
        jcasType.jcas.throwFeatMissing("sourceOntology", "de.julielab.jules.types.OntRelationMention");
      return jcasType.ll_cas.ll_getStringValue(addr, ((OntRelationMention_Type)jcasType).casFeatCode_sourceOntology);}
docs: getter for sourceOntology - gets Ontology defining the relation to which the relation mention refers to.
  @generated
  @return value of the feature