Training NLU with 2 custom entities

I would like to know understand more how to create a NLU pipeline and their drawbacks…

One thing I am trying to acheived, is to get 4 or less entities extract based on an answer.

The question could be: How many adults and children would you be ?

The answer could be: Two adults and two children; Two adults and one child; One adult and two child; One adult and one child.

And probably many other variants

How to differenciate adults/adult and child/children and extract their count?

hi @webgem-jpl ! there is a (very experimental) PR for this https://github.com/RasaHQ/rasa/pull/3889

Thank @amn41 it seems like interesting work! Using role for a specific entity would make the syntax way more flexible.