List<BELStatement> stmts = group.getStatements();
assertTrue(stmts.size() == 1);
BELStatement stmt = stmts.get(0);
BELEvidence evidence = stmt.getEvidence();
assertNotNull(evidence);
BELCitation citation = stmt.getCitation();
assertNotNull(citation);
assertEquals("Evidence\nneeded", evidence.getEvidenceLine());
assertEquals("PubMed", citation.getType());
assertEquals("X", citation.getName());
assertEquals("Y", citation.getReference());
}