Conflicting applications are not prior art, so we can only evaluate novelty. However, in many cases, the application of conflict is not exactly the same as that of the present invention, and the difference is only the obvious substitution of conventional means. In this case, it is obviously unreasonable if there is no "alternative of conventional means". In order to solve this contradiction, "direct substitution of conventional means" is added in the novelty chapter of the Guide. In fact, the difference between this and creativity lies in "common sense." The "conventional means" are all the same, but you can't say "common sense" and "conventional means" when applying for conflict. This is a creative term, but everyone can understand that "conventional means" in creativity is actually equivalent to "common sense" and "conventional means";