In this task, you're given a review from Amazon's food products. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral or mixed, 4: good, 5: extremely good. 

Example Input: I bought a new bread machine and bought this collection of bread mixes as well as some single mixes to try it out.  The single mixes worked well as they included yeast packaged separately in the mix.  My machine states clearly not to get the yeast wet, to put it on top of the flour away from the water.  The mixes in this collection have the yeast in the flour, not packaged separately.  The bread failed to rise at all.  Why would they package the yeast separately in the single mixes and not in the multi packs?  Along with the Heartland Collection I also purchased the Baker's Choice Collection.  I am throwing them all out.  Don't waste your money.
Example Output: 1

Example Input: If this was called "Medium Roast", I would give it 4 stars. It's a good coffee.  But this is called French Vanilla Caramel, and this review is based on the product's name.  Let me say that vanilla and caramel are perhaps my favorite flavors... coffee, ice cream, candy, you name it... if it's vanilla or caramel, I love it.  With the exception of this.  Where's the vanilla? Where's the caramel? And don't get me wrong: I'm not trying to say that the flavors are too mild. I'm saying that they are NON-EXISTENT. And therefore, based on the name, this coffee gets 1 star.
Example Output: 1

Example Input: Love these little peanut butter dipped granola bars.  They are delicious.  They are only one point on the Weight Watchers POINTS system.  Even you were not dieting, these bars are a great and filling snack.
Example Output:
5