code: public String getSyn() {
      if (GENIAConstituent_Type.featOkTst && ((GENIAConstituent_Type)jcasType).casFeat_syn == null)
        jcasType.jcas.throwFeatMissing("syn", "de.julielab.jules.types.GENIAConstituent");
      return jcasType.ll_cas.ll_getStringValue(addr, ((GENIAConstituent_Type)jcasType).casFeatCode_syn);}
docs: getter for syn - gets Marks coordinations, O
  @generated
  @return value of the feature