Consider though that both lettuce and tomatoes are 95% water.
If you made a salad with 50% lettuce and 10% tomatoes, even ignoring the remaining ingredients the minimum possible water content would be 57%.
If anything, I think the section of "broth" underneath "soup" needs to be part of salad.
This is based on a graph comparing silt, clay, and sand. https://en.m.wikipedia.org/wiki/Loam#/media/File%3ASoilTexture_USDA.svg