Classify each sentence in the paragraph into "positive" or "negative".
Input: The coffee tasted great, but there was not enough sugar.
The waitress was friendly but her service was not as fast as I would have liked.
Positive: The coffee tasted great. 
Negative: There was not enough sugar.
Negative: Her service was not as fast as I would have liked.
Positive: The coffee tasted great.
Negative: There was not enough sugar.
Negative: Her service was not as fast as I would have liked.