diff --git a/.gitignore b/.gitignore
index f049506..939006d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,3 @@
-data/**.n3s
 yarn-error.log
 yarn.lock
 node_modules/**
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0c9e645
--- /dev/null
+++ b/README.md
@@ -0,0 +1,36 @@
+# n32s
+
+The n32s code is a precompiler from Notation3 to a N3S format that is used by Prolog reasoners such as [eye](https://github.com/eyereasoner/eye), [retina](https://github.com/eyereasoner/retina) and [Latar](https://github.com/MellonScholarlyCommunication/Latar)
+
+## Installation
+
+```
+yarn install
+```
+
+## Usage
+
+```
+node js/index.js <n3-file>
+```
+
+## Example
+
+```
+$ cat demo.n3
+@prefix : <urn:example.org:> .
+@prefix log: <http://www.w3.org/2000/10/swap/log#> .
+
+:Alice a :Person .
+
+(_:X) log:onNegativeSurface {
+    _:X a :Person .
+    () log:onNegativeSurface {
+        _:X a :Human .
+    } .
+} .
+
+$ node js/index.js demo.n3
+'<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>'('<urn:example.org:Alice>','<urn:example.org:Person>').
+'<http://www.w3.org/2000/10/swap/log#onNegativeSurface>'(['_:X'],('<http://www.w3.org/2000/10/swap/log#onNegativeSurface>'([],('<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>'('_:X','<urn:example.org:Human>'))),'<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>'('_:X','<urn:example.org:Person>'))).
+```
\ No newline at end of file
diff --git a/data/00-simple.n3-result b/data/00-simple.n3-result
new file mode 100644
index 0000000..0d57c2d
--- /dev/null
+++ b/data/00-simple.n3-result
@@ -0,0 +1 @@
+'<http://www.w3.org/2000/10/swap/log#onNegativeSurface>'(['_:x'],('<http://www.w3.org/2000/10/swap/log#onNegativeSurface>'([],('<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>'('<urn:example.org:c>','_:x'))),'<urn:example.org:b>'('<urn:example.org:a>','_:x'))).
diff --git a/data/01-alice.n3 b/data/01-alice.n3
new file mode 100644
index 0000000..f07be1c
--- /dev/null
+++ b/data/01-alice.n3
@@ -0,0 +1,11 @@
+@prefix : <urn:example.org:> .
+@prefix log: <http://www.w3.org/2000/10/swap/log#> .
+
+:Alice a :Person .
+
+(_:X) log:onNegativeSurface {
+    _:X a :Person .
+    () log:onNegativeSurface {
+        _:X a :Human .
+    } .
+} .
\ No newline at end of file
diff --git a/data/01-alice.n3-result b/data/01-alice.n3-result
new file mode 100644
index 0000000..1d2210a
--- /dev/null
+++ b/data/01-alice.n3-result
@@ -0,0 +1,2 @@
+'<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>'('<urn:example.org:Alice>','<urn:example.org:Person>').
+'<http://www.w3.org/2000/10/swap/log#onNegativeSurface>'(['_:X'],('<http://www.w3.org/2000/10/swap/log#onNegativeSurface>'([],('<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>'('_:X','<urn:example.org:Human>'))),'<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>'('_:X','<urn:example.org:Person>'))).
diff --git a/test.sh b/test.sh
new file mode 100755
index 0000000..3ac001d
--- /dev/null
+++ b/test.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+for f in data/*.n3; do
+    node js/index.js $f | tee -a ${f}-result
+done