diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..d4eabcc
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "src/main/clj/clj-tparse"]
+	path = src/main/clj/clj-tparse
+	url = git@github.com:ubindr/clj-tparse.git
+[submodule "src/main/clj/ubindr/clj_tparse"]
+	path = src/main/clj/ubindr/clj_tparse
+	url = git@github.com:ubindr/clj-tparse.git
diff --git a/project.clj b/project.clj
index 0a04bf8..3f65ac2 100644
--- a/project.clj
+++ b/project.clj
@@ -18,7 +18,8 @@
                  [hato               "0.9.0"]
                  [cheshire/cheshire  "5.11.0"]
                  [com.cognitect/transit-clj "1.0.333"]
-                 [lambdaisland/uri "1.13.95"]]
+                 [lambdaisland/uri "1.13.95"]
+                 [clj-turtle "0.1.3"]]
   :main ^:skip-aot org.domaindrivenarchitecture.activity-pub-poc.core
   :profiles {:test {:test-paths ["src/test/cljc"]
                     :resource-paths ["src/test/resources"]
diff --git a/src/main/clj/org/domaindrivenarchitecture/activity_pub_poc/core.clj b/src/main/clj/org/domaindrivenarchitecture/activity_pub_poc/core.clj
index 9c19c52..4bbc56f 100644
--- a/src/main/clj/org/domaindrivenarchitecture/activity_pub_poc/core.clj
+++ b/src/main/clj/org/domaindrivenarchitecture/activity_pub_poc/core.clj
@@ -1,11 +1,12 @@
 (ns org.domaindrivenarchitecture.activity-pub-poc.core
   (:require [lambdaisland.souk.activitypub :as ap]
             [lambdaisland.souk.json-ld :as ld]
+            [ubindr.clj-tparse :as tparse]
             [clojure.spec.alpha :as s]
             [clojure.inspector :as ins]
             [hato.client :as hato]
             [clojure.string :as str]
-            [clojure.walk :as walk]) )
+            [clojure.walk :as walk]))
 
 (def team-url "https://social.meissa-gmbh.de/users/team")
 (def like-url "https://www.w3.org/ns/activitystreams#Like")
@@ -21,10 +22,9 @@
 ;;(ins/inspect-tree team-ld)
 ;;(ins/inspect-tree team)
 
+;(def xsd/string? string?)
+;(defn rdf/langString? [value] (or (string? value)
+;                                  (regex mit @ )))
 
-(def xsd/String? string?)
-(defn rdf/langString? [value] (or (string? value)
-                                  (regex mit @ )))
-
-(s/def ::activitystreams/name (s/or xsd/string?
-                                    rdf/langString?))
\ No newline at end of file
+;(s/def ::activitystreams/name (s/or xsd/string?
+;                                    rdf/langString?))
\ No newline at end of file
diff --git a/src/main/clj/ubindr/clj_tparse b/src/main/clj/ubindr/clj_tparse
new file mode 160000
index 0000000..d99fc8a
--- /dev/null
+++ b/src/main/clj/ubindr/clj_tparse
@@ -0,0 +1 @@
+Subproject commit d99fc8ade8f4390a357f2403c0bcb93b5e8e05d3