XBELTerm subject = source.getSubject().getTerm();
TermConverter tConverter = new TermConverter();
// Defer to TermConverter for statement construction
Statement dest = new Statement(tConverter.convert(subject));
XBELAnnotationGroup annotationGroup = source.getAnnotationGroup();
AnnotationGroupConverter agConverter = new AnnotationGroupConverter();
// Defer to AnnotationGroupConverter
dest.setAnnotationGroup(agConverter.convert(annotationGroup));
String comment = source.getComment();