diff --git a/LearningSPARQL.mm b/LearningSPARQL.mm
index f057a30..032518e 100644
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-<node TEXT="01. Jumping Right In: Some Data and Some Queries" FOLDED="true" POSITION="bottom_or_right" ID="ID_1596485397" CREATED="1702253707408" MODIFIED="1705770618169">
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-<node TEXT="01.06 Querying a Public Data Source" FOLDED="true" ID="ID_1284135076" CREATED="1702254565174" MODIFIED="1702254575840">
+<node TEXT="01.06 Querying a Public Data Source" ID="ID_1284135076" CREATED="1702254565174" MODIFIED="1702254575840">
 <node TEXT="DBpedia" ID="ID_1889431054" CREATED="1705795807941" MODIFIED="1705795815092" LINK="https://www.dbpedia.org/"/>
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 <node TEXT="What SPARQL is?" FOLDED="true" ID="ID_1114353261" CREATED="1705797533889" MODIFIED="1705797541817">
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-<node TEXT="02.03 The Resources Description Framework (RDF)" ID="ID_1266958868" CREATED="1702254620110" MODIFIED="1705941144874">
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-<node TEXT="02.03.02 Storing RDF in Databases" ID="ID_1717571032" CREATED="1702254763255" MODIFIED="1702254773218">
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