final Literal plainLit = vf.createLiteral("plain");
final Literal dtLit = vf.createLiteral(1);
final Literal langLit = vf.createLiteral("test", "en");
final Literal litWithNewline = vf.createLiteral("literal with newline\n");
final Literal litWithSingleQuotes = vf.createLiteral("'''some single quote text''' - abc");
final Literal litWithDoubleQuotes = vf
.createLiteral("\"\"\"some double quote text\"\"\" - abc");
final Statement st1 = vf.createStatement(bnode, uri1, plainLit);
final Statement st2 = vf.createStatement(uri1, uri2, langLit, uri2);
final Statement st3 = vf.createStatement(uri1, uri2, dtLit);