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

[EX Q]: An extremely helpful gem on a complex subject of second century religious authority and textual use. For anyone serious about this period and the interelation of cultures, this book is essential. Is it complex and detailed? Of course, it must be to argue the point. Should you buy it? Yes, unless you want to keep running back to the library. I write this only after thoroughly disagreeing with the review above.
[EX A]: Positive

[EX Q]: Worked like a charm all over England. I haven't tried the other adaptors, but I found my MacBook to work just like it does here in the US, and there was no difficulty plugging into the outlets.
[EX A]: Positive

[EX Q]: Avoid this book on the basis a dated and harmful passage on page 144 that states that homosexuality is "related to a failure in identification" and that parents of homosexual children should "seek professional help at the earliest possible moment". Their view of the cause of homosexuality is out of mainstream thought, and it implies that something wrong happened. The main reason for need for any counseling would be if homosexuality is causing adjustment or self-acceptance problems. This is not what the author's have in mind. Following the author's advice fails to honor your childs true nature, and certainly would be detrimental to the development of his/her self esteem.
[EX A]:
Negative