def dict_str(data: dict, *, sep: str = ", ") -> str:
    return sep.join(f"{k}={v}" for k, v in data.items())


def dereference_dict(input_dict: dict[str, str]) -> dict[str, str]:
    """Return a resolved version of the input dictionary, where each key is associated with its terminal value.

    In the input dictionary, values may be other keys.
    This function resolves the dictionary by following the chain of keys until it reaches a terminal value.
    If a key points to itself or is involved in a cycle, it is omitted from the output.

    Parameters:
    - input_dict (dict[str, str]): A dictionary where the keys and values are strings. The values can either be terminal values or other keys in the dictionary.

    Returns:
    - dict[str, str]: A dictionary where each key is associated with its resolved terminal value. Keys involved in cycles are not included.

    Example:
    >>> dereference_dict({'a': 'b', 'b': 'c', 'c': 'a',    'd': 'e', 'e': 'f', 'f': 'g',    'h': 'i', 'i': 'h',    'j': 'j',    'k': 'l',     'm': 'n', 'n': 'o', 'o': 'n',    'p': 'q', 'q': 'r', 'r': 's', 's': 'q'})
    {'d': 'g', 'e': 'g', 'f': 'g', 'k': 'l'}
    """
    output_dict = {}
    for start_key, start_value in input_dict.items():
        current_key, current_value = start_key, start_value
        visited = set()

        while True:
            if current_key in visited:
                break
            visited.add(current_key)

            if current_value in input_dict:
                current_key, current_value = current_value, input_dict[current_value]
            else:
                output_dict[start_key] = current_value
                break

    return output_dict
