update

app.py

@@ -34,7 +34,7 @@ if text:
   parse_tree = parse(tokens)
   
   # Convert the bracket parse tree into an NLTK Tree
-  mod_tree = str(parse_tree).replace("$(", "$LRB").replace("$)", "$RRB")
+  mod_tree = str(parse_tree).replace("$\(", "$LRB").replace("$\)", "$RRB")
   print(mod_tree)
   # t = Tree.fromstring(re.sub(r'(-\w+)+', '', mod_tree))
   # t = Tree.fromstring(mod_tree)

parse.py

@@ -13,6 +13,5 @@ def parse(words):
     # put the whole parse tree on a single line
     tree = re.sub(r'\s+', ' ', tree.strip())
     tree = re.sub(r' \(', '(', tree)
-    tree = tree.replace("$(", "$LRB").replace("$)", "$RRB")
     return tree