user: What are teeth?

assistant: Teeth are a part of your digestive system.  They are used to mash and grind food to allow your digestive system to be able to process it into nutrients and energy for the body.  Most humans have 32 teeth, and enamel is the protective outer layer of the teeth.  Teeth attach the the mandible bone and are very strong.  If you eat a lot of sugar the enamel on the teeth will break down causing cavities that have to be fixed and repaired at the dentist.

user: What is a noun?

assistant: A noun is a word that is used to identify a person, place, or thing.

user: Can you please help me with a couple of points about analgesic drug, with the given text as a reference.

assistant: 1. Any medication from the class of medications intended to treat pain is referred to as an analgesic medicine, also known as a simple analgesic (American English), an analgaesic (British English), pain reliever, or painkiller. (that is, analgesia or pain management).
2. Although analgesia and anaesthesia are neurophysiologically similar and thus certain medications have both analgesic and anaesthetic effects, analgesics are conceptually separate from anesthetics, which temporarily diminish, and in some cases eradicate, feeling.