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diff --git a/config-model/src/main/resources/schema/searchchains.rnc b/config-model/src/main/resources/schema/searchchains.rnc
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+# Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+#Schema for search chains and searchers inside the searchchains section.
+
+include "federation.rnc"
+
+SearchChains =
+    element searchchains {
+        Searcher* &
+        SearchChainInQrservers* &
+        GenericConfig*
+   }
+
+# TODO: Cannot have generic config (see bug #4766780)
+OuterSearchChains =
+    element searchchains {
+        Searcher* &
+        SearchChainInQrservers* &
+        GenericConfig*  # TODO: Remove when we no longer need the QRServersV2 syntax (qrs without clusters)
+   }
+
+SearchChainInQrservers =
+    element searchchain {
+        GenericSearchChainInQrservers
+    } |
+    Provider
+
+GenericSearchChainInQrservers =
+    ComponentId &
+    SearchChainInheritanceInQrservers &
+    attribute searchers { text }? &
+    Searcher* &
+    Phase* &
+    GenericConfig*
+
+SearchChainInheritanceInQrservers =
+    attribute inherits { text }? &
+    attribute excludes { text }? &
+    element inherits {
+        element searchchain { ComponentSpec }* &
+        element exclude { ComponentSpec }*
+    }?
+
+Searcher =
+    RegularSearcher |
+    FederationSearcher
+
+RegularSearcher =
+    element searcher {
+        BundleSpec &
+        GenericSearcherOrDocumentProcessor
+    }
+
+
+GenericSearcherOrDocumentProcessor =
+    ComponentId &
+    SearcherOrDocumentProcessorDependencies &
+    GenericConfig*
+
+SearcherOrDocumentProcessorDependencies =
+    Dependencies &
+    attribute provides { text }? &
+    element provides { xsd:Name }*
+
+Dependencies =
+    attribute before { text }? &
+    attribute after { text }? &
+    element   before { xsd:Name }* &
+    element   after { xsd:Name }*
+
+Phase =
+    element phase {
+        ComponentId &
+        Dependencies
+    }