Slides, a debris slides. During earthquakes, they are both activated and the movement on the deep sea slides accelerates as well as the official material that erodes. If theres one point that is brought home from this discussion of landslides is San Francisco is a part of the community that experiences many types of landslides, rockfalls, deportations. We need to be aware of the geologic and topographic setting we are in. When we are planning to build our home or buy a home or at additions to the home. If i have one suggestion, that is to seek information from the Apartment Building inspection. If youre not satisfied, there is ample information there. A geologist needs an opinion of the stability of the environment youre in. The Building Department will typically require that kind of information. People will do a major edition. What we are wondering is why we require that information. Great, thank you very much. It is terrific. It is fun to see a lot of the city. Thank you