code: public Used newUsed(QualifiedName id, QualifiedName activity, QualifiedName entity,
  			XMLGregorianCalendar time,
  			Collection<Attribute> attributes) {
  	Used res = newUsed(id, activity, null, entity);
  	res.setTime(time);
  	setAttributes(res, attributes);
  	return res;
      }
docs: /* (non-Javadoc)
  @see org.openprovenance.prov.model.ModelConstructor#newUsed(org.openprovenance.model.QualifiedName, org.openprovenance.model.QualifiedName, org.openprovenance.model.QualifiedName, javax.xml.datatype.XMLGregorianCalendar, java.util.Collection)