public String getTag() {
    if (GeneMention_Type.featOkTst && ((GeneMention_Type)jcasType).casFeat_tag == null)
      jcasType.jcas.throwFeatMissing("tag", "edu.lti.cmu.hw1.typesys.GeneMention");
    return jcasType.ll_cas.ll_getStringValue(addr, ((GeneMention_Type)jcasType).casFeatCode_tag);}