diff --git a/lib/wikidata/snak.rb b/lib/wikidata/snak.rb
index 2ffe44a..f5f2f8a 100644
--- a/lib/wikidata/snak.rb
+++ b/lib/wikidata/snak.rb
@@ -11,7 +11,9 @@ def property
 
     def value
       @value ||= begin
-        if datavalue['type'] == "wikibase-entityid"
+        if snaktype == "somevalue"
+          Wikidata::DataValues::String.new({string: "Unknown"})
+        elsif datavalue['type'] == "wikibase-entityid"
           Wikidata::DataValues::Entity.new(datavalue.value)
         elsif datavalue['type'] == "time"
           Wikidata::DataValues::Time.new(datavalue.value)