You will be shown 10 sentences from reviews of products and services. For each, your task is to choose from one of four labels:

• Positive: The sentence conveys information about the author's positive evaluative sentiment.
• Negative: The sentence conveys information about the author's negative evaluative sentiment.
• No sentiment: The sentence does not convey anything about the author's positive or negative sentiment.
• Mixed sentiment: The sentence conveys a mix of positive and negative sentiment with no clear overall sentiment.

Here are some simple examples of the labels:

• Sentence: This is an under-appreciated little gem of a movie.
  This is Positive because it expresses a positive overall opinion.
• Sentence: I asked for my steak medium-rare, and they delivered this perfectly!
  This is Positive because it puts a positive spin on an aspect of the author's experience.
• Sentence: The screen on this device is a little too bright.
  This is Negative because it negatively evaluates an aspect of the product.
• Sentence: The book is 972 pages long.
  This is No sentiment because it describes a factual matter with no evaluative component.
• Sentence: The waiting room is drab but the examination rooms are cheery enough.
  This is Mixed sentiment because two different sentiment evaluations are balanced against each other.
• Sentence: The entrees are delicious, but the service is so bad that it's not worth going.
  This is Negative because the negative statement outweighs the positive one.