def translate_assessment_id(assessment_id):
    """
    The assessment id is translated to MongoDB database and collection names.

    Input:   - assessment_id: The connection details for making a connection with a MongoDB instance.

    Outputs: - database_name: The name of the Mongo database in string format.
             - collection_name: The name of the collection of tweets to read in string format.
    """
    assessment_id = assessment_id.split(".")

    database_name = assessment_id[0]
    collection_name = assessment_id[1]

    return database_name, collection_name