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Which sequence of nodes correctly models a LangGraph flow where AI generates text, a human edits it, and then AI summarizes the edited text?

hard📝 Conceptual Q8 of 15
LangChain - LangGraph for Stateful Agents
Which sequence of nodes correctly models a LangGraph flow where AI generates text, a human edits it, and then AI summarizes the edited text?
AAINode('summarize') -> HumanNode('edit') -> AINode('generate')
BHumanNode('edit') -> AINode('generate') -> AINode('summarize')
CAINode('generate') -> HumanNode('edit') -> AINode('summarize')
DAINode('generate') -> AINode('summarize') -> HumanNode('edit')
Step-by-Step Solution
Solution:

  1. Step 1: Understand flow requirements

    AI generates text first, then human edits, then AI summarizes.

  2. Step 2: Match node sequence

    Sequence must be generate -> edit -> summarize.

  3. Final Answer:

    AINode('generate') -> HumanNode('edit') -> AINode('summarize') -> Option C

  4. Quick Check:

    Follow logical order of operations [OK]
Quick Trick: Follow logical task order: generate, edit, summarize [OK]
Common Mistakes:
MISTAKES
  • Placing human edit before generation
  • Summarizing before editing
  • Reversing node order

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