Store store = getStoreImpl(clock);
Model model1 = modelWithStatements("_a dc:subject 'sub1'; _a dc:subject 'hello'; _a http://xmlns.com/foaf/0.1/knows http://example.org/; _c dc:subject 'foo'");
final FCAGraph graph1 = new FCAGraphImpl(model1);
Model model2 = modelWithStatements("_b dc:subject 'sub2'; _b dc:subject 'hello'; _b http://xmlns.com/foaf/0.1/knows http://example.org/");
final FCAGraph graph2 = new FCAGraphImpl(model2);
Source source = new SourceImpl("http://example.org/graph-source");
Date date1 = dateFormat.parse("20050607");
Date date2 = dateFormat.parse("20050608");
Date date3 = dateFormat.parse("20060912");
clock.setTime(date1);
store.assertGraph(source, graph1);