diff --git a/concordia-server/unit_dao.cpp b/concordia-server/unit_dao.cpp
index 7a86ecb..b8343a2 100644
--- a/concordia-server/unit_dao.cpp
+++ b/concordia-server/unit_dao.cpp
@@ -167,11 +167,19 @@ SimpleSearchResult UnitDAO::_getResultFromFragment(
 }
 
 ExampleOccurrence UnitDAO::_getExampleOccurrence(DBconnection & connection, const SubstringOccurrence sOccurrence, const int matchedLength) {
+    Logger::log("_getExampleOccurrence");
     std::string query = "SELECT unit.id, unit.source_segment, unit.target_segment, unit.source_tokens[$1::integer], unit.source_tokens[$2::integer], unit.target_tokens, unit.alignments, source.name, source.link FROM unit left join source on unit.source_id = source.external_id where unit.id = $3::integer;";
     std::vector<QueryParam*> params;
-    params.push_back(new IntParam(2*sOccurrence.getOffset()+1));
-    params.push_back(new IntParam(2*(sOccurrence.getOffset()+matchedLength)));
-    params.push_back(new IntParam(sOccurrence.getId()));
+    int sourceTokenStart = 2*sOccurrence.getOffset()+1;
+    int sourceTokenEnd = 2*(sOccurrence.getOffset()+matchedLength);
+    int sourceId = sOccurrence.getId();
+    Logger::logInt("sourceTokenStart", sourceTokenStart);
+    Logger::logInt("sourceTokenEnd", sourceTokenEnd);
+    Logger::logInt("sourceId", sourceId);
+
+    params.push_back(new IntParam(sourceTokenStart));
+    params.push_back(new IntParam(sourceTokenEnd);
+    params.push_back(new IntParam(sourceId));
     PGresult * result = connection.execute(query, params);
     ExampleOccurrence occurrence(connection.getIntValue(result,0,0),      // example id
                                 connection.getIntValue(result,0,3),      // matched example start