Update modules/ROOT/pages/tools/neo4j-admin/neo4j-admin-import.adoc

Author: renetapopova

modules/ROOT/pages/tools/neo4j-admin/neo4j-admin-import.adoc

@@ -1482,7 +1482,8 @@ U,person1,KNOWS,person2,abc,"Keanu Reeves","Hello Morpheus"
 U,person2,KNOWS,person1,def,"Laurence Fishburne","Hello Neo"
 ----
 
-The data in the `p1` column for these relationships helps "more uniquely" selecting relationships, if multiple of `1,KNOWS,2` exist.
+The data in the `p1` column for these relationships helps select relationships "more uniquely" if a multiple of `1,KNOWS,2` exists.
+There can also be multiple identifier properties defined in the header. 
 Identifier properties match the selected relationships and will not be set on the relationships that already have them.
 
 === Update existing labels