Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: My backyard has a six foot block wall and the dogs next door bark constantly. Will this whistle work i this situation or will the wall stop the sound?
Document: Annoying a** dogs next door don't know when to shut up. I don't mind them barking here and there but they bark at the wind and when my husband and I have to get up at 345am yes it's very annoying. The neighbors suck because they don't come out to shut the stupid dogs up or take them inside so I orderd this whistle and it does work. When that little dog won't stop I go in the backyard and blow this whistle until my lungs hurt!
I was amazed at how well this really works! Our next door neighbors have two dogs that bark at us continuiously when we go into our backyard. It had become such a pain to try to grill out or for our kids to enjoy playing in the backyard. Nothing like owning property and not being able to enjoy it because of neighbors who can't keep their dogs quiet. Not a problem anymore!!!! This dogs whistle really works!!!
This whistle had no affect on the barking big dog next door.It would stop when he heard the sound but as soon as I quit he started up again. This is a big dog in a townhouse complex and the occupants leave him out on a very small enclosed patio from 7:00 AM.I don't want to be blowing this whistle all day. It would take too much time and it doesn't work!
Not sure how well the whistle works as we have dogs behind our fence that bark continuously, but after blowingthe whistle for awhile they stop barking and blowing the whistle gives us some satisfaction that weare trying something. There is a high pitch sound from the whistle when blowing it but as we turn the screw on the basethe pitch goes up and the barking stops. We tried a Bark Stop device that emits a frequency when it hears a bark butthey move their kennel around the backyard  to calm the dogs down.
This whistle didn't work. I tried it on the next door neighbors three dogs for several days and it did not stop any one dog from barking. I was close to the fence on high levels.
Reviewed a bunch of dog silencing products so i could stop all of my annoying neighbor's dogs all around me to stop barking. I also bought it for my dog so i could train him to not be like them! I swear people just buy dogs so they can just throw them in the backyard to bark! Anyways the whistle worked immediately for my dog...i was blown away!
Well running after him is no longer an issue. I just go outside and blow that whistle and not just our dog, but the two dogs next door immediately stop what they are doing and freeze.
Just like other reviewers had said, this is the high end of dog whistles. This is no joke. It has different settings as you twist the middle and it gives off different pitches. I've never seen my dog respond to anything so quickly as he does this dog whistle. I got this dog whistle mostly because our dog loves to chase and bark at the dogs next door along the fence. He gets so fixated at chasing the dog that he doesn't hear us yelling to him to come inside.
An excellent tool for inside and out of doors. With a cranky, threatening neighbor, and buying an expensive dog silencer, the whistle has been the icing on the cake to silence the dogs (2) even more so the silence throughout the neighborhood is comforting.Yes, I would recommend this product to anyone who cares enough about their dogs to train them to stop annoying barking, like the lawn workers next door.Too bad there's not a whistle to train our raged children of today.
When she would stop barking, I would stop blowing the whistle. Worked like a charm! Within a week, she stopped having fits of barking and would only do a short bark or two at a time. It's been a couple of months now and I don't even carry the whistle anymore. She notices the people in the hallway and the sound of closing doors, but she doesn't get distressed anymore.All dogs are different, but it's not a terribly expensive thing to try if your dog has a barking problem.
Answer: yes