langchain/cookbook/analyze_document.ipynb

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   "source": [
    "# Analyze a single long document\n",
    "\n",
    "The AnalyzeDocumentChain takes in a single document, splits it up, and then runs it through a CombineDocumentsChain."
   ]
  },
  {
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   "id": "2a0707ce-6d2d-471b-bc33-64da32a7b3f0",
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   "source": [
    "with open(\"../docs/docs/modules/state_of_the_union.txt\") as f:\n",
    "    state_of_the_union = f.read()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "ca14d161-2d5b-4a6c-a296-77d8ce4b28cd",
   "metadata": {},
   "outputs": [],
   "source": [
    "from langchain.chains import AnalyzeDocumentChain\n",
    "from langchain_openai import ChatOpenAI\n",
    "\n",
    "llm = ChatOpenAI(model=\"gpt-3.5-turbo\", temperature=0)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "9f97406c-85a9-45fb-99ce-9138c0ba3731",
   "metadata": {},
   "outputs": [],
   "source": [
    "from langchain.chains.question_answering import load_qa_chain\n",
    "\n",
    "qa_chain = load_qa_chain(llm, chain_type=\"map_reduce\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "0871a753-f5bb-4b4f-a394-f87f2691f659",
   "metadata": {},
   "outputs": [],
   "source": [
    "qa_document_chain = AnalyzeDocumentChain(combine_docs_chain=qa_chain)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "e6f86428-3c2c-46a0-a57c-e22826fdbf91",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'The President said, \"Tonight, I’d like to honor someone who has dedicated his life to serve this country: Justice Stephen Breyer—an Army veteran, Constitutional scholar, and retiring Justice of the United States Supreme Court. Justice Breyer, thank you for your service.\"'"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "qa_document_chain.run(\n",
    "    input_document=state_of_the_union,\n",
    "    question=\"what did the president say about justice breyer?\",\n",
    ")"
   ]
  }
 ],
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