conversations.from: human
conversations.value: Provide a step by step solution for the following math problem: Mark has a really bad headache.  He takes 2 Tylenol tablets of 500 mg each and he does every 4 hours for 12 hours.  How many grams of Tylenol does he end up taking?
conversations.from: assistant
conversations.value: He takes 12/4=3 doses
  Each dose is 500*2=1000 mg
  So he takes 3*1000=3000 mg
  So he takes 3000/1000=3 grams of Tylenol