Chain of Thought: Extracting the Final Answer
Intermediate
The problem, from first principles
Few-shot chain-of-thought outputs end with a fixed phrase. Parsing that phrase is how the evaluation pulls the final answer out of a long reasoning trace.
From theory to code
Implement extract_final_answer(text), returning the text after the last 'The answer is' phrase.
Constraints
- Return None if the phrase does not occur.
Hints
Hint 1
Use re.findall to capture the content after each phrase, then take the last match.
Keywords
research-papersagentsreasoningprompting
Python
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