def parse_book_name(line):
    """
    Extracts book name and year from title
    :param line: string containing book title
    :return:
        name: book name
        year: book year
    """
    parts = line.split(':')
    name = parts[0].strip()
    if(parts.__len__() > 1):
        year = parts[1].strip()
    else:
        year = 'Unknown'
    return name, year