Instruct: Classify the given comments as either toxic or not toxic
Query: Rubbish.  Marijuana has been around since the third day of creation.  Please don't give any credibilty to Reefer madness.  Marijuana is far less dangerous than a host of so called legal products.  

A shame you didn't provide a link to that study.  I would have liked to have seen if there were any critical reviews of it.