Statements:
Some pigs are dogs.
Some dogs are cat.
Conclusions:
I. Some pigs are cats.
II. Some dogs are pigs.
Some pigs are dogs (I) + Some dogs are cat (I) ⇒ No conclusion. Hence, conclusion I will not follow. Some pigs are dogs (I) ⇒ conversion ⇒ Some dogs are pigs (I). Hence, conclusion II will follow
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