The United Parcel Service plans to convert its more than 2,000 gasoline-powered trucks in the Los Angeles area to run on cleaner-burning natural gas.
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Ato convert its more than 2,000 gasoline-powered trucks in the Los Angeles area to
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Bto convert its more than 2,000 trucks in the Los Angeles area that are powered by gasoline to.
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Con converting its more than 2,000 gasoline-powered trucks in the Los Angeles area that will
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Dfor its more than 2,000 gasoline-powered trucks in the Los Angeles to convert to
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Ethat its more than 2,000 trucks in the Los Angeles area that are powered by gasoline will convert to
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