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BIG-Bench Hard / Some football fans admire various clubs, others love only a single team. But…

Problem

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input

"Some football fans admire various clubs, others love only a single team. But who is a fan of whom precisely? The following argument pertains to this question: To start with, somebody is an ex-supporter of FC Basel 1893 and a devotee of AS Trenčín. Now, no ex-supporter of Paris Saint-Germain is a devotee of AS Trenčín. In consequence, not every ex-supporter of FC Basel 1893 is an ex-supporter of Paris Saint-Germain."
Is the argument, given the explicitly stated premises, deductively valid or invalid?
Options:
- valid 
- invalid

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