Update README.md

README.md

@@ -156,7 +156,7 @@ print(scores)
 
 ## Limitations and Bias
 There are two mode in this metric : `strict` and `boundaries`. It offers multiple `relation_types` to choose from. Ensure you choose appropriate evaluation parameters, as they can significantly impact the F1 score.
-The `entity_name` in both the prediction and reference should match exactly, disregarding case and spaces. If the prediction doesn't match the reference exactly, it will be counted as either a false positive (fp) or a false negative (fn). 
+The entity(`head`,`tail`,`head_type`,`tail_type`) in both the prediction and reference should match exactly, disregarding case and spaces. If the prediction doesn't match the reference exactly, it will be counted as either a false positive (`fp`) or a false negative (`fn`). 
 
 ## Citation
 ```bibtex