Fix the example for the REL task

src/tasks.py

@@ -157,7 +157,7 @@ NER_DESCRIPTION = """### Named Entity Recognition (NER) --- *Generative task*
 """
 
 REL_DESCRIPTION = """### Relation Extraction (REL) --- *Generative task*
-    The input is a sentence of a clinical text. The model must identify and extract relationships between laboratory test results (e.g., blood pressure) and the corresponding tests or procedures that generated them (e.g., blood pressure test).
+    The input is a sentence of a clinical text. The model must identify and extract relationships between laboratory test results (e.g., blood pressure like 120/80 mmHg) and the corresponding tests or procedures that generated them (e.g., blood pressure test).
 
 | #   | Prompt                                                                                       |
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