diff --git a/layers/+lang/semweb/README.org b/layers/+lang/semweb/README.org
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+#+TITLE: Semantic Web layer
+
+[[file:img/semweb.png]]
+
+* Table of Contents                                        :TOC_4_gh:noexport:
+ - [[#description][Description]]
+ - [[#install][Install]]
+ - [[#key-bindings][Key bindings]]
+
+* Description
+This layer adds support for RDF files in N3 and [[https://www.w3.org/TR/turtle/][Turtle syntax]] using [[https://bitbucket.org/nxg/ttl-mode][ttl-mode]]
+and for [[https://www.w3.org/TR/sparql11-query/][SPARQL]] queries using [[https://github.com/ljos/sparql-mode][sparql-mode]].
+
+SPARQL-mode supports the execution of queries. When first called, you will be
+prompted for a SPARQL HTTP endpoint in the minibuffer, which defaults to
+http://localhost:2020/. Once set, it will be used for all subsequent queries in
+that buffer. Results will be displayed in another buffer in CSV format.
+
+* Install
+To use this configuration layer, add it to your =~/.spacemacs=. You will need to
+add =semweb= to the existing =dotspacemacs-configuration-layers= list in this
+file.
+
+* Key bindings
+
+| Key Binding | Description           |
+|-------------+-----------------------|
+| ~SPC m q~   | Execute SPARQL query  |
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diff --git a/layers/+lang/semweb/packages.el b/layers/+lang/semweb/packages.el
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+;;; packages.el --- semweb layer packages file for Spacemacs.
+;;
+;; Copyright (c) 2012-2016 Sylvain Benner & Contributors
+;;
+;; Author: Andreas Textor <mail@atextor.de>
+;; URL: https://github.com/syl20bnr/spacemacs
+;;
+;; This file is not part of GNU Emacs.
+;;
+;;; License: GPLv3
+
+(setq semweb-packages
+  '(
+    company
+    ttl-mode
+    sparql-mode
+    ))
+
+(defun semweb/init-ttl-mode ()
+  (use-package ttl-mode
+    :mode ("\\.\\(ttl\\|n3\\)\\'" . ttl-mode)))
+
+(defun semweb/post-init-company ()
+  (add-hook 'sparql-mode-hook 'company-mode))
+
+(defun semweb/init-sparql-mode ()
+  (use-package sparql-mode
+    :mode ("\\.\\(sparql\\|rq\\)\\'" . sparql-mode)
+    :init (spacemacs/set-leader-keys-for-major-mode 'sparql-mode "q" 'sparql-query-region)))
+
+(defun semweb/pre-init-org ()
+  (spacemacs|use-package-add-hook org
+    :post-config (add-to-list 'org-babel-load-languages '(sparql . t))))