如何在Python中创建返回此列表所有组合的函数？

Question

我有这样的列表：

[['I'],['want','love','like'],['cat',dog]]

我想创建一个函数，可以返回列表中所有单词的组合，如下所示：

[['I'],['want'],['cat']]
[['I'],['love'],['cat']]
[['I'],['like'],['cat']]
[['I'],['want'],['dog']]
[['I'],['love'],['dog']]
[['I'],['like'],['dog']]

PS：该功能必须可以使用任何n个单词

Answer 1

import itertools
for k in itertools.product(*lst):
    print(k)