Instruct: Classify the given comments as either toxic or not toxic
Query: Just another anti-vaccine conspiracy theorist nut job...   Your city water  is more legislated and 100 times safer than any bottled water you can drink.  Over 85 different water tests are done daily at water treatment plants in my city.  There are no deadly carcinogens or toxins in my water.  

Educate yourself and read The Big Thirst: http://www.thebigthirst.com/the-book/