Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I should've listened to the first two reviews

My review is limited to 1,000 words; that's longer than this study guide! I should've listened to the first two reviews but ...The study guide covers less than 30 commands ( by example only ) and covers a very few files ( name and what its for only ).There is other info in it too, but these are also covered in the briefest manner.The material doesn't even tell you what you should study elsewhere for the exam.$5 would definitely have been better spent on coffee while I studied other material for the exam.