Added price as a feature

analyze_data.py

@@ -16,9 +16,10 @@ video = Node('video', parent=camera)
 battery = Node('battery', parent=camera)
 flash = Node('flash', parent=camera)
 audio = Node('audio', parent=camera)
+price = Node('price', parent=camera)
 
-reviewables = [camera, image, video, battery, flash, audio]
-features = [image, video, battery, flash, audio]
+reviewables = [camera, image, video, battery, flash, audio, price]
+features = [image, video, battery, flash, audio, price]
 
 glossary = {
 camera: ['camera', 'device'],
@@ -26,7 +27,8 @@ image: ['image', 'picture'],
 video: ['video'],
 battery: ['battery'],
 flash: ['flash'],
-audio: ['audio', 'sound']
+audio: ['audio', 'sound'],
+price: ['price', 'value']
 }
 
 # extract phrases