def capitalize_haiku(haiku_array):
    """Capitalize appropriate words in haiku"""
    period = '.'
    haiku_array[0] = haiku_array[0].capitalize()
    for i in range(1, len(haiku_array)):
        if haiku_array[i] == period and i + 2 < len(haiku_array):
            haiku_array[i + 2] = haiku_array[i + 2].capitalize()
    return haiku_array
