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diff --git a/bsie/apps/info.py b/bsie/apps/info.py
new file mode 100644
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+++ b/bsie/apps/info.py
@@ -0,0 +1,74 @@
+"""
+
+Part of the bsie module.
+A copy of the license is provided with the project.
+Author: Matthias Baumgartner, 2022
+"""
+# imports
+import argparse
+import sys
+import typing
+
+# bsie imports
+from bsie.base import errors
+from bsie.tools import builder
+from bsie.utils.bsfs import URI
+
+# exports
+__all__: typing.Sequence[str] = (
+    'main',
+    )
+
+
+## code ##
+
+def main(argv):
+    """Show information from BSIE."""
+    parser = argparse.ArgumentParser(description=main.__doc__, prog='info')
+    parser.add_argument('what', choices=('predicates', ),
+        help='Select what information to show.')
+    args = parser.parse_args(argv)
+
+    # FIXME: Read reader/extractor configs from a config file
+    # reader builder
+    rbuild = builder.ReaderBuilder({})
+    # extractor builder
+    ebuild = builder.ExtractorBuilder([
+        {'bsie.extractor.generic.path.Path': {}},
+        {'bsie.extractor.generic.stat.Stat': {}},
+        {'bsie.extractor.generic.constant.Constant': dict(
+            tuples=[('http://bsfs.ai/schema/Entity#author', 'Me, myself, and I')],
+            schema='''
+                bse:author rdfs:subClassOf bsfs:Predicate ;
+                    rdfs:domain bsfs:Entity ;
+                    rdfs:range xsd:string ;
+                    bsfs:unique "true"^^xsd:boolean .
+                ''',
+            )},
+        ])
+    # pipeline builder
+    pbuild = builder.PipelineBuilder(
+        URI('http://example.com/me/file#'), # not actually used
+        rbuild,
+        ebuild,
+        )
+
+    # build pipeline
+    pipeline = pbuild.build()
+
+    # show info
+    if args.what == 'predicates':
+        # show predicates
+        for pred in pipeline.schema.predicates():
+            print(pred.uri)
+    else:
+        # args.what is already checked by argparse
+        raise errors.UnreachableError()
+
+
+## main ##
+
+if __name__ == '__main__':
+    main(sys.argv[1:])
+
+## EOF ##