Rollie Tremaine is the one boy that Jerry and the others did not want to get a Grover Cleveland card.
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This would be known as Negative Sanction.
Answer:
Take the magnet which has lost its power and stroke it with the stronger magnet. Linear strokes in a single direction will realign the electrons within the magnet, which will help its strength to increase. Stroke the magnet for around 15 minutes, and check to see if the strength has returned.
I hope this helped! :)