diff --git a/.gitignore b/.gitignore
index c52fdba7636564582fc6cedb7db09213c0e99281..12a510753ad22d0f5d0e9da3a85dcea302fcc0ec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,6 @@
 /.settings
 /bin/
 /ant-bin/
-/compiler.jar
+/relast-compiler.jar
 /src/generated/
 /.gradle
diff --git a/README.md b/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..dd28cff2df17f5e9daed9540042a91cdeacf6515
--- /dev/null
+++ b/README.md
@@ -0,0 +1,17 @@
+# RelAST Preprocessor
+
+Run preprocessor on train benchmark (output written to standard output)
+
+	$ ant jar
+	$ java -jar relast-compiler.jar examples/TrainBenchmark.relast
+
+Run preprocessor and write to files
+
+	$ java -jar relast-compiler.jar examples/TrainBenchmark.relast --file
+	$ cat examples/TrainBenchmarkGen.ast
+	$ cat examples/TrainBenchmarkGen.jadd
+
+Run test cases
+
+	$ cd test
+	$ make
\ No newline at end of file
diff --git a/build.xml b/build.xml
index a35cb9455facd700951bed986451fd0bb9012cf4..50520f7b89ae25fd1839b33e376ed22b3d6ffee0 100755
--- a/build.xml
+++ b/build.xml
@@ -6,7 +6,7 @@
 	<property name="tools" value="${basedir}/tools"/>
 	<property name="test-reports.dir" location="report-tests"/>
 
-	<property name="jarfile" value="compiler.jar" />
+	<property name="jarfile" value="relast-compiler.jar" />
 	<property name="junitjar" value="${tools}/junit-4.11-SNAPSHOT.jar" />
 
 	<!-- "package" is the directory where generated files will be stored -->
diff --git a/examples/Rail.relast b/examples/TrainBenchmark.relast
similarity index 100%
rename from examples/Rail.relast
rename to examples/TrainBenchmark.relast
diff --git a/spec/scanner/RelAst.flex b/spec/scanner/RelAst.flex
index 2039600619b4753d34c42663d3e1260de306f1d7..1e4001989901e5377c152a9a0933fe136a7ff20a 100644
--- a/spec/scanner/RelAst.flex
+++ b/spec/scanner/RelAst.flex
@@ -41,9 +41,6 @@ EndOfLineComment = "//" [^\n|\r|\r\n]*
 Comment = {TraditionalComment} | {EndOfLineComment}
 
 ID = [a-zA-Z$][a-zA-Z0-9$_]*
-FLOAT  = -?[0-9]+ \. [0-9]+ {Exponent}?
-Exponent = [eE] [+-]? [0-9]+
-NUM = -?[0-9]+
 
 %state STRING
 
diff --git a/test/Test.java b/test/Test.java
index fe6be7882cba6f9fda9bcb08496fd6b5933d3c37..1d1a1d7233cdbeea11fec5560be5dd7a327fe715 100644
--- a/test/Test.java
+++ b/test/Test.java
@@ -28,6 +28,8 @@ public class Test {
 		testBi7();
 		testBi8();
 		testBi9();
+
+		System.out.println("TESTS OK");
 	}
 
 	/**