(words)
return result
:type words: List[str]
    :rtype: List[str]
:type words: List[str]
    :rtype: List[str]
: type words : List [ str ] : rtype : List [ str ]
def find_keyboard_row(words):
    """
    :type words: List[str]
    :rtype: List[str]
    """
    keyboard = [
        set('qwertyuiop'),
        set('asdfghjkl'),
        set('zxcvbnm'),
    ]
    result = []
    for word in words:
        for key in keyboard:
            if set(word.lower()).issubset(key):
                result.append(word)
    return result
def find_keyboard_row ( words ) : keyboard = [ set ( 'qwertyuiop' ) , set ( 'asdfghjkl' ) , set ( 'zxcvbnm' ) , ] result = [ ] for word in words : for key in keyboard : if set ( word . lower ( ) ) . issubset ( key ) : result . append ( word ) return result