Update README.md

README.md

@@ -94,6 +94,27 @@ Below, an example of data instance.
 
 #### Relations Extraction
 
+
+For each instance, there is a document name representing the name of the document of the Friedrich *et al.* dataset, a list of tokens representing the words of the document instance, a list of interger representing the words position within each sentence of the document instance, a list of *ner tags* (in IOB2 format) representing the annotation of the token, a list of sentence id representing for each token the number of the sentence, and a list of relations of the document.
+
+Below, an example of data instance.
+```
+{
+  "document name": "doc-1.1", 
+  "tokens": ["A", "small", "company",...],
+  "tokens-IDs": [0, 1, 2, ...], 
+  "ner_tags": ["O", "O", "O", ...],
+  "sentence-IDs": [0, 0, 0, ...],
+  "relations": {
+                "source-head-sentence-ID": [1, 1, 1, ...], 
+                "source-head-word-ID": [4, 4, 4, ...], 
+                "relation-type": ["uses", "flow", "actor recipient", ...], 
+                "target-head-sentence-ID": [1, 2, 1,...], 
+                "target-head-word-ID": [5, 9, 1, ...]
+                }
+}
+```
+
 ### Data Fields
 #### Token Classification