[Solved] What will be the output of this chained prompt code? from langchain import PromptTemplate, LLMChain prompt1 = PromptTemplate(template="Name:... What will be the output of this chained prompt code? | LangChain

LangChain - Prompt Templates

What will be the output of this chained prompt code?

from langchain import PromptTemplate, LLMChain
prompt1 = PromptTemplate(template="Name: {name}")
prompt2 = PromptTemplate(template="Greeting: Hello {name}!")
chain1 = LLMChain(prompt=prompt1)
chain2 = LLMChain(prompt=prompt2)
intermediate = chain1.run(name="Bob")
final_output = chain2.run(name=intermediate)

A"Name: Bob"

B"Greeting: Hello Bob!"

C"Greeting: Hello Name: Bob!"

DError because intermediate is not a valid name

Step-by-Step Solution

Solution:

Step 1: Evaluate intermediate output
chain1.run returns "Name: Bob" as string.
Step 2: Use intermediate as name in chain2
chain2.run uses intermediate string as {name}, so output is "Greeting: Hello Name: Bob!".
Final Answer:
"Greeting: Hello Name: Bob!" -> Option C
Quick Check:
Output nests intermediate string as name [OK]

Quick Trick: Output of one chain can be input string for next [OK]

Common Mistakes:

Assuming intermediate is just 'Bob'
Expecting error due to nested string
Confusing output with original input

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More LangChain Quizzes

What will be the output of this chained prompt code?

Step 1: Evaluate intermediate output

Step 2: Use intermediate as name in chain2

Final Answer:

Quick Check:

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