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-rw-r--r--data/2014/europe.ttl1
1 files changed, 1 insertions, 0 deletions
diff --git a/data/2014/europe.ttl b/data/2014/europe.ttl
index 8735273..e476db9 100644
--- a/data/2014/europe.ttl
+++ b/data/2014/europe.ttl
@@ -22,6 +22,7 @@
@prefix tio: <http://purl.org/tio/ns#> .
@prefix tl: <http://purl.org/NET/c4dm/timeline.owl#>.
@prefix transit: <http://vocab.org/transit/terms/> .
+@prefix unit: <http://qudt.org/vocab/unit#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
<> foaf:primaryTopic :trip .