Relation Extraction Hugginface

I a little bit confused, I have a task from my finance divison to fine tune NER in pretrained model and I realize in John Snow Lab have a NLP task for relation extraction, My question

  1. how we can the train the relation extraction after fine tune the NER?
  2. can we do it in hugginface?
  3. if not possible in hugginface what transformer model use in relation extraction?
    maybe a data scientist professional can help me to understanding this