def f():
    "Here's a line ending in a question mark?"
    ...


def f():
    """Here's a line ending in an exclamation mark!"""
    ...

def f():
    """Here's a line ending in a colon:"""
    ...

def f():
    """Here's a line ending in a semi colon;"""
    ...

def f():
    """Here's a line ending with a whitespace  """
    ...