Add entity with specials character (/)

Rasa Open Source
1

Hi i need to extract entity with “/” special character . from the Forum i could understood Spacy tokenizer can solve the problem. even i configured spacy the issue is solved it. any help of this concerns are highly appreciated.

############## nlu file

- intent: transaction_No
  examples: |
    - my transaction number is [/SAPAPO/RRP3](transaction)
    - The transaction is [/SAPAPO/RES01](transaction)
    - this is my transaction [/CASWW/PSS_AVSP_WK](transaction)