diff --git a/ps-grammar/emergencySituation/object.jsgf b/ps-grammar/emergencySituation/object.jsgf
index 8fc32b37246e373897739db7adf473c427a2c18a..9d1811f654e8d37d521ea32b8dce3c7262b624af 100644
--- a/ps-grammar/emergencySituation/object.jsgf
+++ b/ps-grammar/emergencySituation/object.jsgf
@@ -1,6 +1,6 @@
 #JSGF V1.0;
 grammar ToBI_object;
-public <statement> = <objectPhrase>;
+public <statement> = water;
 
-<objectPhrase> = water | self aid kit | cell phone;
+<objectPhrase> = water | (self aid kit) | (cell phone);