GenomicRegionsBuilder gbout= new GenomicRegionsBuilder();
Iterator<GenomicRegion> it= gb.iterator();
while(it.hasNext()){
DirectionalGenomicRegion gr= (DirectionalGenomicRegion)it.next();
String[] ss= ((BedAttribute)gr.attribute()).getOtherFields().get(0).split("/");
if(ss.length>0){
boolean ifas= false;
for( int i=0; i<ss.length; i++ ){
String s= ss[i];
if(gr.isOnForwardStrand()){