Define 'base' as default sentence foundry

Change-Id: Ida2da00b312696da841b46eb7ca611958a105c47
diff --git a/src/test/resources/queries/poly2.json b/src/test/resources/queries/poly2.json
index 0477f35..3339772 100644
--- a/src/test/resources/queries/poly2.json
+++ b/src/test/resources/queries/poly2.json
@@ -24,6 +24,8 @@
       "operands" : [
          {
             "@type" : "koral:span",
+            "foundry" : "base",
+            "layer" : "s",
             "key" : "s"
          },
          {