Before revision:  In this work, we describe a very simple approach for joint entity and relation extraction, and establish the new state-of-the-art on standard benchmarks (ACE04, ACE05 , and SciERC)  .
After revision:  In this work, we describe a very simple approach for joint entity and relation extraction, and establish the new state-of-the-art on standard benchmarks (ACE04, ACE05 , and SciERC) , obtaining a 1.7\%-2.8\% absolute improvement in relation F1 over previous joint models with the same pre-trained encoders .