### Question:
Symbol extends ERE { @Override public EREType getEREType() { return EREType.S; } private  Symbol(); static Symbol get(String name); @Override EREType getEREType(); @Override boolean equals(Object o); @Override int compareTo(Object o); @Override ERE copy(); @Override String toString(); @Override boolean containsEpsilon(); @Override ERE derive(Symbol s);  }### Answer:
@Test public void testEREType() { EREType type = one.getEREType(); assertEquals(EREType.S, type); }