Instruct: Classify Amazon reviews into positive or negative sentiment
Query: You wont be the same after you watch this...and nobody should.

Nanking is a kind of documentary told by the Westerners and the Chinese who lived through the massacre of the Imperial Japanese Army in 1937. The foreigners who lived in Nanking at the time have sadly passed away but their diaries and stories are read aloud by such actors as Woody Harelson, Jurgen Prochnow and Mariel Hemingway.Along with the actors reading their parts and the testimonials of surviving Chinese are actual pictures and film footage of the horrors the Japanese soldiers inflicted on the citizens of Nanking.For the most part you have to have a very strong stomach and a strong heart to watch this. Its gruesom, horrifying and beyond sad. Many would argue though, in order for history not to repeat itself, it needs to be seen.