Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

[EX Q]: I'm not a fan of the crime writing genre, so I require more than some blood and guts and a few nasty frights to make me speak highly of a crime novel. Unfortunately, I cannot speak highly of From Potter's Field.I know more about dogs than I do about forensic medicine, so it makes me suspicious of the novel's factual integrity when I read that a murderer's eyes are "as pale blue as a malamute's", when in fact (according to the Alaskan Malamute Club of America), a malamute's eyes MUST be brown, never blue.It also made me laugh to think that all the crime agencies (and the media!!) in the USA would be completely ignorant regarding the closest relatives of the country's highest profile serial killer. Although if the good guys had known some basic details about the killer's family tree, Dr Kay would have been left twiddling her thumbs, so I suppose I should quit complaining.Well, I read the book right through to the end, and it kept me amused, so I have to give it one star.
[EX A]: Negative

[EX Q]: THIS TOY WAS OUR GRANDSON'S FAVORITE, SO I JUST HAD TO FIND IT AGAIN FOR OUR NEWEST GRANDCHILD. THANK GOODNESS FOR ONLINE SHOPPING.
[EX A]: Positive

[EX Q]: I needed this in a timely manner to replace the department video that had been misplaced. I ordered it the day before Thanksgiving, and it was shipped out to me the Friday after. It arrived in good condition in plenty of time for me to review before using it in the class room.
[EX A]:
Positive