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Why is the first compound aromatic and the second compound non-aromatic?

In the first compound, the left side of the ring is aromatic but the right side isn't.
Second compound satisfies all the conditions of aromaticity but why is it non-aromatic?

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marked as duplicate by Mithoron, Tyberius, airhuff, pentavalentcarbon, Todd Minehardt Feb 26 '18 at 23:51

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