followup retrieval fix

app.py

@@ -114,12 +114,16 @@ def app():
     _inputs = RunnableParallel(
         standalone_question=RunnablePassthrough.assign(
             chat_history=lambda x: chistory
-        ) | CONDENSE_QUESTION_PROMPT | llmc | StrOutputParser(),
+        )
+        | CONDENSE_QUESTION_PROMPT
+        | llmc
+        | StrOutputParser(),
     )
     _context = {
         "context": itemgetter("standalone_question") | retriever | _combine_documents,
         "question": lambda x: x["standalone_question"],
     }
+    
     conversational_qa_chain = _inputs | _context | ANSWER_PROMPT | llm
 
     st.header("Ask Away!")