diff --git a/200.md b/200.md
index eebee2d..677766f 100644
--- a/200.md
+++ b/200.md
@@ -47,9 +47,9 @@ Every NoH response is a JSON body that contain the following JSON field:
 
 - `results`: Array of relay response. Usually contain events requested by client.
 - `count`: Integer of event counts.
-- `notice`: Human readable error.
+- `notice`: String of human readable error.
 
-Relay may also respond with HTTP status code:
+At certain condition, Relay will also respond with HTTP status code:
 
 - `200`: OK / Success
 - `400`: Invalid Request