diff --git a/Paper/CLIP/Learning Hierarchical Prompt with Structured Linguistic Knowledge for Vision-Language Models.md b/Paper/CLIP/Learning Hierarchical Prompt with Structured Linguistic Knowledge for Vision-Language Models.md
index e69de29..7e158e7 100644
--- a/Paper/CLIP/Learning Hierarchical Prompt with Structured Linguistic Knowledge for Vision-Language Models.md	
+++ b/Paper/CLIP/Learning Hierarchical Prompt with Structured Linguistic Knowledge for Vision-Language Models.md	
@@ -0,0 +1,2 @@
+# TODO
+- How to train encoder with the opposite modality frozen encoder?
\ No newline at end of file