Complex sentence: The 2014 Taiwan food scandal refers to a series of food safety incidents in Taiwan involving the adulteration of cooking oil with recycled waste oil and animal feed oil that was discovered in September 2014.
Split into simpler sentences: The 2014 Taiwan food scandal refers to a series of food safety incidents in Taiwan that came to light in 2014. Adulteration of cooking oil with recycled waste oil and animal feed oil was discovered in September 2014.