diff --git a/readme.md b/readme.md
index cc3bca8..6db3fcc 100644
--- a/readme.md
+++ b/readme.md
@@ -1,22 +1,66 @@
-# shaclgen 
-shaclgen generates shacl templates based on the properties and classes present in a graph. This module uses the rdflib library for working with rdf.
+SHACLGEN
+========
 
+Shaclgen takes either a data graph(s) or schema(s) as input and
+generates a basic shape file based on the classes and properties
+present.
 
+**Shape files from data graphs:** By default, the input graph is
+processed as a data graph (instance triples). Three formats are possible
+for data graphs: simple, nested, and extended.
 
-### From the command line:
-```
-$ shaclgen [uri to data] [serialization]
-```
+-   Simple: Each class and property generate individual Node- and
+    PropertyShapes.
+-   Nested: Property shapes will be nested in nodeshapes iif they occur
+    with one class.
+-   Extended: Expands nested shapes to create individual property shapes
+    for each property, in addition to nesting them when appropriate.
 
-Supported serializations include:
-- `ttl` for turtle
-- `xml` for rdf/xml
-- `nt` for ntriples
+**Shape files from ontologies:** If the input is a schema or ontology,
+shaclgen generates a nested shape file: properties with rdfs:domain
+defined in the ontology will be nested within the appropriate NodeShape.
+rdfs:range definitions for XML and rdfs datatypes are included.
 
-example:
-```
-$shaclgen https://www.lib.washington.edu/static/public/cams/data/datasets/uwSemWebParts/aggregation-1-0-0.ttl ttl
-```
-This project is still in development. Comments, questions, and issues are welcome!
+Added support for OWL constructions is planned.
+
+* * * * *
+
+Installation
+------------
+
+Using pip: :
+
+    pip install shaclgen
+
+From source:
+
+<https://github.com/alexiskeely/shaclgen>
+
+Command line use:
+-----------------
+
+    $ shaclgen graph [optional arguments]
+
+Example usage: :
+
+    $ shaclgen https://www.lib.washington.edu/static/public/cams/data/datasets/uwSemWebParts/webResource-1-0-0.nt
+
+Command line arguments: :
+
+    positional arguments:
+    graph                 The data graph(s).
+
+    optional arguments:
+    -h, --help            show this help message and exit
+    -nf, --nested         generates a nested shape file
+    -ef, --extended       generates an expanded shape file
+    -o, --ontology        input file(s) or URL(s) is a schema or ontology
+    -s SERIALIZATION, --serialization SERIALIZATION
+                          result graph serialization, default is turtle
+
+* * * * *
+
+This project is still in development. Comments, questions, and issues
+are welcome!
 
 Contact alexiskm at uw dot edu.
diff --git a/shaclgen/schema.py b/shaclgen/schema.py
index 40ff239..e09a8e1 100644
--- a/shaclgen/schema.py
+++ b/shaclgen/schema.py
@@ -168,19 +168,19 @@ def gen_graph(self, serial='turtle'):
                             ng.add((blank, SH.datatype, rang))
                         else:
                             ng.add((blank, SH['class'], rang ))
-                    for r in self.REST.keys():
-                        if self.REST[r]['onProp'] == p and self.REST[r]['onClass'] == self.PROPS[p]['domain']:
-                            if self.REST[r]['type'] in (OWL.cardinality):
-                                ng.add((blank, SH.minCount, Literal(self.REST[r]['value'], datatype=XSD.integer)))
-                                ng.add((blank, SH.maxCount, Literal(self.REST[r]['value'], datatype=XSD.integer)))
-                            elif self.REST[r]['type'] in (OWL.minCardinality):
-                                ng.add((blank, SH.minCount, Literal(self.REST[r]['value'], datatype=XSD.integer)))
-                            elif self.REST[r]['type'] in (OWL.maxCardinality):
-                                ng.add((blank, SH.maxCount, Literal(self.REST[r]['value'], datatype=XSD.integer)))
-                            else:
-                                pass
-                        else:
-                            pass
+#                    for r in self.REST.keys():
+#                        if self.REST[r]['onProp'] == p and self.REST[r]['onClass'] == self.PROPS[p]['domain']:
+#                            if self.REST[r]['type'] in (OWL.cardinality):
+#                                ng.add((blank, SH.minCount, Literal(self.REST[r]['value'], datatype=XSD.integer)))
+#                                ng.add((blank, SH.maxCount, Literal(self.REST[r]['value'], datatype=XSD.integer)))
+#                            elif self.REST[r]['type'] in (OWL.minCardinality):
+#                                ng.add((blank, SH.minCount, Literal(self.REST[r]['value'], datatype=XSD.integer)))
+#                            elif self.REST[r]['type'] in (OWL.maxCardinality):
+#                                ng.add((blank, SH.maxCount, Literal(self.REST[r]['value'], datatype=XSD.integer)))
+#                            else:
+#                                pass
+#                        else:
+#                            pass
                 else:
                     label = self.PROPS[p]['label']
                     ng.add((EX[label], RDF.type, SH.NodeShape))