def get_node_representation(node, print_lemma=False):
    """
    Transform the node into the proper textual representation,
    as will appear in the extracted contexts.

    :param node: An input Node.
    :param print_lemma: If true, the node lemma is used, otherwise the node form.
    :return: A proper node textual representation for the contexts data.

    """
    if print_lemma:
        output = node.lemma
    else:
        output = node.form
    output = output.lower()
    return output
