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BIG-Bench Hard / Is Siri a stepsister of Mary? Is Susan related to Kate? In large families, it…

Problem

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input

"Is Siri a stepsister of Mary? Is Susan related to Kate? In large families, it is sometimes difficult to keep track of all one's relatives. The following argument seeks to clarify some such relations: First of all, whoever is not a classmate of Shanika is a daughter of Candace. Therefore, being a classmate of Shanika is necessary for not being a daughter of Candace."
Is the argument, given the explicitly stated premises, deductively valid or invalid?
Options:
- valid 
- invalid

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Source and history

task_id
9cdf61a9-dd4c-5837-949f-07827f453168
task_key
formal~5ffallacies--main--9cdf61a9-dd4c-5837-949f-07827f453168
task_revision_id
1
config / split
formal_fallacies / main

Official source

initial import