question: public AnnotationFS add ( AnnotationFS aOriginFs , AnnotationFS aTargetFs , JCas aJCas , int aStart , int aEnd , AnnotationFeature aFeature , Object aLabelValue ) throws BratAnnotationException { if ( crossMultipleSentence || isSameSentence ( aJCas , aOriginFs . getBegin ( ) , aTargetFs . getEnd ( ) ) ) { return interalAddToCas ( aJCas , aStart , aEnd , aOriginFs , aTargetFs , aLabelValue , aFeature ) ; } else { throw new ArcCrossedMultipleSentenceException ( "Arc Annotation shouldn't cross sentence boundary" ) ; } }
target:  Update the CAS with new/modification of arc annotations from brat