Update app.py

app.py

@@ -139,7 +139,7 @@ def sort_doc(text,steps_in=0,control=None):
                     out_js = out_js+control_char[j]
                 
                 sen_obj_out=sen_obj_box[i]    
-                sen_obj_out['sentence']=sen_obj[i-3:i+3]  
+                sen_obj_out['sentence']=sen_list[i-3:i+3]  
                 
                 #sen_obj_out=sen_obj[i-3:i+3]    
                 #sen_obj=sen_obj_box[i]