Re: AttributeError: 'list' object has no attribute 'lower'

[Token Type]

> In fact, I'm guessing that's your problem.  I think you're ending up 
> 
> with a list of lists of strings, when you think you're getting a list of 
> 
> strings.
> 
Thanks. You guess right. It turns out that lemma_list is a list of list, as I 
tested in the previous post.
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