def map_wikt_pos2fn_pos(wikt_pos):
    """
    map Wiktionary part of speech to FrameNet part of speech
    IMPLEMENTED: noun, verbs, and adjectives

    :param str wikt_pos: a part of speech coming from Wiktionary
    """
    fn_pos = None

    if wikt_pos == 'noun':
        fn_pos = 'N'
    elif wikt_pos == 'verb':
        fn_pos = 'V'
    elif wikt_pos == 'adj':
        fn_pos = 'A'

    return fn_pos