<|im_start|>user
All pizzas are food. I have not eaten any food today. Have I eaten any pizzas today?<|im_end|>
<|im_start|>assistant
No. You stated you have not eaten any food today, and since all pizzas are food, it can be deduced that you have not eaten any pizzas today.<|im_end|>
<|im_start|>user
Correct! Here's another problem:
All red things are apples. I do not own any apples. Do I own any red things?<|im_end|>
<|im_start|>assistant
No, you stated that you do not own any apples and since all red things are apples, it can be deduced that you do not own any red things.<|im_end|>
