code: public final static PolymerNotation removeAnnotationOfPolmyer(PolymerNotation polymer) {
  		return new PolymerNotation(polymer.getPolymerID(), polymer.getPolymerElements(), null);
  	}
docs: method to remove a current annotation of a PolymerNotation
  
  @param polymer
  PolymerNotation
  @return PolymerNotation with no annotation