diff --git a/data/fibanocci.md b/data/fibanocci.md
index 7f26372..6232855 100644
--- a/data/fibanocci.md
+++ b/data/fibanocci.md
@@ -7,6 +7,4 @@ value_1 equals fibonacci of temp_1
 value_2 equals fibonacci of temp_2
 value equals addition of value1 with value2
 move-on
-answer equals value
-
-fyi greater : is-greater-than
\ No newline at end of file
+answer equals value
\ No newline at end of file
diff --git a/data/tower-of-hanoi.md b/data/tower-of-hanoi.md
index fb64d6e..6a6e6b2 100644
--- a/data/tower-of-hanoi.md
+++ b/data/tower-of-hanoi.md
@@ -5,6 +5,4 @@ tower-of-hanoi of disks1 with source with medium with target
 show-value-of "Move disk " with disks with " from rod " with source with " with rod " with target 
 tower-of-hanoi of disks1 with medium with target with source
 move-on
-
-fyi what to return no answer is expected
-fyi show-value-of multiple checks get confirmationx
\ No newline at end of file
+answer equals no-answer
\ No newline at end of file
diff --git a/doc/grammar.md b/doc/grammar.md
index 7414cf0..46fa033 100644
--- a/doc/grammar.md
+++ b/doc/grammar.md
@@ -1,6 +1,8 @@
 // Initial Definitions
 `identifier` := \w+(-\w+)*
 `identifier_answer` := answer
+`identifier_answer` := no-answer
+
 
 `block` := `assignment` \n
 `block` := `assignment` \n `block`
@@ -66,4 +68,10 @@
 `function_call` := `identifier` of `argument_list`
 
 // Other Features: Comments
-`comment` := fyi `string` \n
\ No newline at end of file
+`comment` := fyi `string` \n
+
+// Comparison Operators
+`greater_than` := `expression` is-greater-than `expression` 
+`less_than` := `expression` is-less-than `expression` 
+`equal-to` := `expression` is-equal-to `expression` 
+