Review is risky, but according to personal experience, there are also breakthroughs. First of all, you can find the difference between the cited trademarks. Your trademark is water paint, and the quoted trademark is water. There are obvious differences between water paint and water, and their meanings are different. Your focus is on painting and water diversion. According to the consumption habits of Chinese people, water paint is not easy to be confused and mistaken in use, which shows that it does not constitute approximation. Let's look at the second reason for rejection. The reason for rejecting you is that it is easy to be mistaken for specific products. Explain that your trademark is water paint, but some of your registered products are not within the scope of water paint. However, according to the cited trademark, it can be explained that the reason is not established. The reason is that the trademark cited is water guardian, while the product cited by the trademark is paint. As for the use in specific products, it is easy to mistake the quoted trademark, which also belongs to this type. In order to reflect the fairness, standardization and unity of trademark examination and trial, it can be explained that the reasons for rejection are not established. My humble opinion.