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-rw-r--r--lib/environment.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/environment.rb b/lib/environment.rb
index b46bf19..f89a758 100644
--- a/lib/environment.rb
+++ b/lib/environment.rb
@@ -128,6 +128,7 @@ RDF = Redland::Namespace.new 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'
OWL = Redland::Namespace.new 'http://www.w3.org/2002/07/owl#'
DC = Redland::Namespace.new 'http://purl.org/dc/elements/1.1/'
OT = Redland::Namespace.new 'http://www.opentox.org/api/1.1#'
+XML = Redland::Namespace.new 'http://www.w3.org/2001/XMLSchema#'
# Regular expressions for parsing classification data
TRUE_REGEXP = /^(true|active|$1^)/