@Test
public void testPattern215() throws Exception { // Sulfonic Acid. High specificity.

    visit("[$([#16X4](=[OX1])(=[OX1])([#6])[OX2H,OX1H0-]),$([#16X4+2]([OX1-])([OX1-])([#6])[OX2H,OX1H0-])]");
}