diff --git a/src/fr/inrialpes/exmo/align/impl/aggr/ConsensusAggregator.java b/src/fr/inrialpes/exmo/align/impl/aggr/ConsensusAggregator.java
index bd6dc837f4431bf62032e1a83a1ec13c6cf802f8..f29e70213c9726840cb2f7d0ffd3aeefeabc91ed 100644
--- a/src/fr/inrialpes/exmo/align/impl/aggr/ConsensusAggregator.java
+++ b/src/fr/inrialpes/exmo/align/impl/aggr/ConsensusAggregator.java
@@ -126,6 +126,13 @@ public class ConsensusAggregator extends BasicAlignment {
 
     }
 
+    /**
+     * Find the relation if it already exists.
+     * 
+     * NOTE: It may be worth to consider that the relations do not have to
+     * be equal but could be more specific or general than one another.
+     * This could typically be made with algebras of relations.
+     */
     public Cell isAlreadyThere( Cell c ){
 	try {
 	    Set<Cell> possible = getAlignCells1( c.getObject1() );