// "http://biomodels.net/biology-qualifiers/");
s1.addCVTerm(new CVTerm(CVTerm.Type.BIOLOGICAL_QUALIFIER,
CVTerm.Qualifier.BQB_HAS_PART, "urn:miriam:obo.chebi:CHEBI:15422"));
System.out.println("==================================");
new SBMLWriter().write(doc, System.out);
new JTreeOfSBML(doc);
}