Update README.md

README.md

@@ -10,7 +10,7 @@ The evaluation is formulated as single-choice questions.
 The benchmark consists of four splits:
 **Existence**, **Subject**, **Predicate**, and **Object**.
 
-The **Existence** split evaluates the object recognition ability while the remaining splits are designed to evaluate the capability of relation comprehension, focusing on probing each of the elements in the subject-predicate-object triplets of the scene graph separately.
+The **Existence** split evaluates the object recognition ability while the remaining splits are designed to evaluate the capability of relation comprehension, focusing on probing each of the elements in the relation triplets `(subject, predicate, object)` of the scene graph separately.
 Some data examples are shown below.
 
 <img width="800" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/619507e7b74b6c591f794340/_NKaowl2OUBAjck1XCAPm.jpeg">