Improved comments.
diff --git a/nlpcraft-examples/lightswitch/src/main/resources/lightswitch_model.yaml b/nlpcraft-examples/lightswitch/src/main/resources/lightswitch_model.yaml
index a912dca..71b1e46 100644
--- a/nlpcraft-examples/lightswitch/src/main/resources/lightswitch_model.yaml
+++ b/nlpcraft-examples/lightswitch/src/main/resources/lightswitch_model.yaml
@@ -37,6 +37,8 @@
 #
 # Allows for multi-word synonyms in this entire model
 # to be sparse and permutate them for better detection.
+# These two properties generally enable a free-form
+# natural language comprehension.
 #
 permutateSynonyms: true
 sparse: true
diff --git a/nlpcraft-examples/minecraft/src/main/resources/minecraft.yaml b/nlpcraft-examples/minecraft/src/main/resources/minecraft.yaml
index 6db4dc9..b1229a1 100644
--- a/nlpcraft-examples/minecraft/src/main/resources/minecraft.yaml
+++ b/nlpcraft-examples/minecraft/src/main/resources/minecraft.yaml
@@ -143,6 +143,8 @@
 #
 # Allows for multi-word synonyms in this entire model
 # to be sparse and permutate them for better detection.
+# These two properties generally enable a free-form
+# natural language comprehension.
 #
 permutateSynonyms: true
 sparse: true
diff --git a/nlpcraft-examples/sql/src/main/resources/sql_model.yaml b/nlpcraft-examples/sql/src/main/resources/sql_model.yaml
index 73054b3..1cd55e1 100644
--- a/nlpcraft-examples/sql/src/main/resources/sql_model.yaml
+++ b/nlpcraft-examples/sql/src/main/resources/sql_model.yaml
@@ -1517,6 +1517,8 @@
 #
 # Allows for multi-word synonyms in this entire model
 # to be sparse and permutate them for better detection.
+# These two properties generally enable a free-form
+# natural language comprehension.
 #
 permutateSynonyms: true
 sparse: true
\ No newline at end of file