sentences:  During this time, the Sinestro Corps attempted to recruit Batman, known even to some alien races for his formidable ability to instill fear in others.However, Batman's willpower combined with his previous brief exposure to a power ring allowed him to reject the yellow ring before it took him to be properly trained and molded into one of Sinestro's soldiers.The yellow ring then sought a replacement and selected Amon Sur, the disgruntled son of Abin Sur, who was on Earth attempting to steal Hal Jordan's ring.