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
While in the Phoenix area on business. I was in the mood for Vietnamese cuisine. Yelp pointed me towards this restaurant.

Located close to Arizona State University. The place is clean and they serve Chinese food as well. I only ordered the spring rolls (referred as summer rolls in other places) and the large bowl of beef pho, or as they call it "The #1 super everything"

Portion sizes are huge! I had a lot of pho in my bowl, my only problem was the the taste of the broth was very bland. The broth was a little underseaoned for my taste.

The spring rolls were a bit of a disappointment. The seam or edge where they met when they closed the roll was hard. I shouldn't hear the crunch coming from the spring roll skin while biting down.

Overall, not a terrible place. If you're hungry and want to stuff yourself with food, in this regard this place will not disappoint. If you're looking for more taste and flavor, you might want to look elsewhere.

I will need to try the other dishes when I'm back next time. Maybe then I can give them a better rating
Answer:
3 stars