Get the List of Corresponding Negation Terms for a Set of Negated Lexicons

[mehrnooshazizi]

Hello, I am working on a project with a clinical dataset. So far I was able to detect all the diagnoses and whether they are negated or not. But I really like to get the negation term used to detect negated lexicon as well. For example:

import spacy
from negspacy.negation import Negex

nlp = spacy.load("en_core_sci_lg")
nlp.add_pipe("negex")

doc = nlp("She has neither fever nor cough.")

for e in doc.ents:
print(e.text, e._.negex)

fever True
cough True

What more do I expect to get:
The negation term for each negated lexicon detected: neither, nor

It would be very appreciated if you could help me.