Watson Glaser 3: Deductions

Example 2

Text
Peter has 34 pears. All pears are green. But not all pears are ripe. Pears are either ripe or not.

Conclusion
Some green pears are not ripe.

Answer
The conclusion follows. Pears are ripe or not, so if not all pears are ripe and there are pears, there are pears that are not ripe.

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