Create app.py

app.py

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+
+import streamlit as st
+from nltk import pos_tag, word_tokenize
+from nltk.tree import Tree
+from nltk.chunk import conlltags2tree, tree2conlltags
+from nltk.chunk.regexp import RegexpParser
+import nltk
+nltk.download('punkt')
+
+# A simple function to create a chunked tree.
+def create_syntax_tree(sentence):
+    tokens = word_tokenize(sentence)
+    tagged = pos_tag(tokens)
+    # Define your grammar or use a parser here. This is a simple grammar as an example.
+    grammar = "NP: {<DT>?<JJ>*<NN>}"
+    cp = RegexpParser(grammar)
+    chunked = cp.parse(tagged)
+    
+    # Convert the chunked structure to a tree
+    iob_tagged = tree2conlltags(chunked)
+    tree = conlltags2tree(iob_tagged)
+    return tree
+
+# Streamlit app
+st.title('Syntax Tree Generator')
+
+# User input
+sentence = st.text_input('Enter a sentence:', '')
+
+if sentence:
+    tree = create_syntax_tree(sentence)
+    tree.pretty_print()  # This prints the tree to the console. See note below for displaying within Streamlit.