### Question:
CommonNerTokenTransformers { public static TokenTransformer getMorphologyUpperLowerNumberTransformer() { return morphologyUpperLowerNumber; }  static TokenTransformer getLowerCaseTransformer(); static TokenTransformer getMorphologyUpperLowerNumberTransformer(); static TokenTransformer getMorphologyUpperLowerNumberNonContiguousTransformer(); static TokenTransformer getMorphologyContiguousNumbersGroupedOrRejectedTransformer(); static TokenTransformer getEnglishVowelsTransformer();  }### Answer:
@Test public void testMorphologyUpperLowerNumberTransformer() { TokenTransformer transformer = CommonNerTokenTransformers.getMorphologyUpperLowerNumberTransformer(); assertEquals("", transformer.transform("")); assertEquals("aaaa", transformer.transform("miau")); assertEquals("AaAA", transformer.transform("GnRH")); assertEquals("a1", transformer.transform("s2")); assertEquals("aa11aaaa", transformer.transform("rp47phox")); assertEquals("A111", transformer.transform("U937")); assertEquals("A11a1", transformer.transform("U23k9")); assertEquals(".", transformer.transform(".")); }