<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
remove all duplicates from this list: 

apples, grapes, bananas, oranges, kiwi, pears, plums, oranges, cherries, apples, tangerines, peaches<|im_end|>
<|im_start|>assistant
apples, grapes, bananas, oranges, kiwi, pears, plums, cherries, tangerines, peaches<|im_end|>
<|im_start|>user
Which items where duplicates?<|im_end|>
<|im_start|>assistant
The duplicates were "oranges" and "apples".<|im_end|>