add comments
diff --git a/src/main/java/org/yaml/snakeyaml/constructor/Construct.java b/src/main/java/org/yaml/snakeyaml/constructor/Construct.java
index 55e27b0..1913e5c 100644
--- a/src/main/java/org/yaml/snakeyaml/constructor/Construct.java
+++ b/src/main/java/org/yaml/snakeyaml/constructor/Construct.java
@@ -5,6 +5,21 @@
 

 import org.yaml.snakeyaml.nodes.Node;

 

+/**

+ * Provide a way to construct a Java instance out of the composed Node. Support

+ * recursive objects if it is required. (create Native Data Structure out of

+ * Node Graph)

+ * 

+ * @see http://yaml.org/spec/1.1/#id859109

+ */

 public interface Construct {

+    /**

+     * Construct a Java instance with all the properties injected when it is

+     * possible.

+     * 

+     * @param node

+     *            - composed Node

+     * @return a complete Java instance

+     */

     public Object construct(Node node);

 }

diff --git a/src/main/java/org/yaml/snakeyaml/constructor/SafeConstructor.java b/src/main/java/org/yaml/snakeyaml/constructor/SafeConstructor.java
index d065bd6..7d6fd90 100644
--- a/src/main/java/org/yaml/snakeyaml/constructor/SafeConstructor.java
+++ b/src/main/java/org/yaml/snakeyaml/constructor/SafeConstructor.java
@@ -23,6 +23,8 @@
 import org.yaml.snakeyaml.util.Base64Coder;

 

 /**

+ * Construct standard Java classes

+ * 

  * @see <a href="http://pyyaml.org/wiki/PyYAML">PyYAML</a> for more information

  */

 public class SafeConstructor extends BaseConstructor {

diff --git a/src/main/java/org/yaml/snakeyaml/nodes/MappingNode.java b/src/main/java/org/yaml/snakeyaml/nodes/MappingNode.java
index 79f3c77..9304b42 100644
--- a/src/main/java/org/yaml/snakeyaml/nodes/MappingNode.java
+++ b/src/main/java/org/yaml/snakeyaml/nodes/MappingNode.java
@@ -32,6 +32,7 @@
 
     @SuppressWarnings("unchecked")
     @Override
+    // TODO should we return Tuple instead of array ?
     public List<Node[]> getValue() {
         List<Node[]> mapping = (List<Node[]>) super.getValue();
         for (Node[] nodes : mapping) {