how does rasa handles negation in named entities? i found rule based negSpacy library useful.
Hello @Rizvi-004,
Welcome to the community! 
If I got your question right, I think RASA doesn’t care about affirmation or negation, you just teach it how to extract the entities. Using the same example from the of Spacy you provided, on RASA would be something like this:
She does not like [Steve Jobs](person) but likes [Apple](company) [products](subject)
This and some other variances at NLU file would be enough to RASA extract the entities that you had defined.
Cya!