Empty Entity value in NLU

I want to create a chatbot that extract words from the user message as entity and send it to dictionary and in return get the meaning of that word. But the problem is entity values are not getting extracted, and I am getting empty brackets. I am trying to solve this issue for weeks now. Now, I am exhausted and desperate. Please help me to figure this out. nlu.yml (7.2 KB) rules.yml (131 Bytes) stories.yml (233 Bytes)

actions.py (1.7 KB) domain.yml (527 Bytes) config.yml (2.0 KB)

Rasa Version : 3.6.13 Minimum Compatible Version: 3.5.0 Rasa SDK Version : 3.6.2 Python Version : 3.10.0 Operating System : Windows-10-10.0.19045-SP0

these are versions installed on my system.