Update app.py

app.py

@@ -32,10 +32,18 @@ def get_sentiment(text):
 def get_summarizer():
     summarizer = pipeline("summarization", model="facebook/bart-large-cnn")
     return summarizer
-  
+
+def get_qa_model():
+    model_name = "deepset/roberta-base-squad2"
+
+    qa_pipeline = = pipeline('question-answering', model=model_name, tokenizer=model_name)
+    return qa_pipeline
+        
 sentiment_model   = get_sentiment_model()
 summarizer = get_summarizer()
-text_generator = load_text_gen_model()
+answer_geerator = get_qa_model()
+
+#text_generator = load_text_gen_model()
 
 action = st.sidebar.selectbox("Pick an Action", ["Analyse a Review","Generate an Article","Create an Image"])
 
@@ -50,6 +58,13 @@ if action == "Analyse a Review":
         if st.button("Summarize the review"):
             summary = summarizer(review, max_length=130, min_length=30, do_sample=False)
             st.write(summary)
+        
+        if st.button("Find the key topic"):
+            QA_input = {'question': 'what is the review about?',
+                        'context': review}
+            answer = answer_geerator (QA_input)
+            st.write(answer)
 
+