Part 1. Definition
You are given a review about a place. You need to provide a rating from "1 star" to "5 stars" for this place.
Part 2. Example
Although I did enjoy the food here, I was completely unimpressed (and slightly annoyed) by the overpriced margaritas. I ordered a platinum which contained "fresh" juice. It tasted like it had sprite in it, so I thought surely she gave me the wrong one. It turns out that "fresh juice" is really margarita mix on tap from the same gun as the sprite. I asked for something fresh to replace the horrible margarita and received a rocks glass with just muddled lime and a salted rim. I'm not sure it contained any tequila. Horrible! It's not that hard to make a fresh margarita!
Answer: 2 stars
Explanation: The writer has been annoyed in this place and has enjoyed the food. So, "2 stars" sounds reasonable for it.
Part 3. Exercise
I'm downgrading them two stars for their lunch selection. Yes the price is cheaper for lunch but the qualify and the selection is a lot less as well. They served flank steak and turkey at their carving stations and both cuts of meats were dry. The sushi station is very limited to just veggie, California roll, and at request spicy tuna hand rolls. The miso soup is really salty too. The seafood menu is very limited too.

I guess its still an above average buffet but I was disappointed as dinner here the last time was really good.
Answer:
2 stars