diff --git a/graph.nt b/graph.nt
index 43399bd48..15b81a86f 100644
--- a/graph.nt
+++ b/graph.nt
@@ -1766,8 +1766,8 @@
 <https://2024.dataweek.de/lswt2024/#programm-talk-8> <http://schema.org/startTime> "11:00:00.000"^^<http://www.w3.org/2001/XMLSchema#time> .
 <https://2024.dataweek.de/lswt2024/#programm-talk-8> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Event> .
 <https://2024.dataweek.de/lswt2024/#programm-talk-9> <http://purl.org/dc/terms/date> "2024-04-18"^^<http://www.w3.org/2001/XMLSchema#date> .
-<https://2024.dataweek.de/lswt2024/#programm-talk-9> <http://purl.org/dc/terms/title> "Generative AI in the enterprise and the role of knowledge graphs"@de .
-<https://2024.dataweek.de/lswt2024/#programm-talk-9> <http://purl.org/dc/terms/title> "Generative AI in the enterprise and the role of knowledge graphs"@en .
+<https://2024.dataweek.de/lswt2024/#programm-talk-9> <http://purl.org/dc/terms/title> "How to make generative AI in the enterprise work with knowledge graphs: RDF, Property Graphs, or both?"@de .
+<https://2024.dataweek.de/lswt2024/#programm-talk-9> <http://purl.org/dc/terms/title> "How to make generative AI in the enterprise work with knowledge graphs: RDF, Property Graphs, or both?"@en .
 <https://2024.dataweek.de/lswt2024/#programm-talk-9> <http://schema.org/endTime> "11:30:00.000"^^<http://www.w3.org/2001/XMLSchema#time> .
 <https://2024.dataweek.de/lswt2024/#programm-talk-9> <http://schema.org/location> <https://dataweek.de/venue#Sitzungssaal> .
 <https://2024.dataweek.de/lswt2024/#programm-talk-9> <http://schema.org/performer> <https://dataweek.de/#FelixSasaki> .
@@ -3885,7 +3885,9 @@
 <https://dataweek.de/#AxelNgonga> <http://schema.org/affiliation> <https://www.uni-paderborn.de/> .
 <https://dataweek.de/#AxelNgonga> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .
 <https://dataweek.de/#AxelNgonga> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> .
+<https://dataweek.de/#AxelNgonga> <http://www.w3.org/2004/02/skos/core#prefLabel> "Prof. Dr. Axel-Cyrille Ngonga" .
 <https://dataweek.de/#AxelNgonga> <http://xmlns.com/foaf/0.1/name> "Axel-Cyrille Ngonga" .
+<https://dataweek.de/#AxelNgonga> <http://xmlns.com/foaf/0.1/title> "Prof. Dr." .
 <https://dataweek.de/#BeateGinzel> <http://purl.org/dc/terms/description> "Digital City Manager"@en .
 <https://dataweek.de/#BeateGinzel> <http://purl.org/dc/terms/description> "Leiterin Referat Digitale Stadt"@de .
 <https://dataweek.de/#BeateGinzel> <http://schema.org/affiliation> <https://digitalcampus.leipzig.de/referat-digitale-stadt/> .
diff --git a/graph.nt.source b/graph.nt.source
index 4da41451e..5e3449813 100644
--- a/graph.nt.source
+++ b/graph.nt.source
@@ -1,2 +1,2 @@
 git@github.com:AKSW/leipzig.dataweek.de-model.git
-f528eeee98464fc78d640147e829f584d12baa63
+d09fc52b1594562d8d65d5177a757f1305baf54b