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                                What inference can you make about why Gita's mom thought of elephants?
"Speaking of elephants," said Gita's mom, stopping at a red light, "would you like to ride one?" 
"What? We weren't even talking about elephants," said Gita.  Then she noticed the billboard across the street.  It was an ad for a car insurance company that showed an elephant stepping on the hood of a car. The slogan read "Accidents Happen."
                                What is "she saw the billboard and the elephant in the ad made her think of them"?