LEX slot type for file name. AMAZON.LITERAL replacement

问题

I have to create an intent with sample utterances

• "open file 'fileName'"
• "show 'fileName'"
• ...

Basically, I have to have a slot which accepts file name. User can type

• "open my file report.pdf"
• "open file activity1.doc"
• "open file last year report"

It would work perfectly If I could use AMAZON.LITERAL type, but it is deprecated.

What slot type I can use? Or how to extract file name (or basically any text with no type)

So far I have tested with below slot types and all not perfect:

• Created custom slot type (but I can't add all possible file names, because of that it doesn't work all the time)
• AMAZON.Organization
• AMAZON.Actor

来源：https://stackoverflow.com/questions/50976487/lex-slot-type-for-file-name-amazon-literal-replacement