Now, when we determine the normal equilibrium constant, we don't include solids and liquids in our calculation. And in the same way, when we talk about salvation or solubility product constant KFC, we don't include solids and liquids. For example, let's take a reaction of solid Orion compound AB that associates in water into A plus B. Now, since we don't count the solids, we don't count the liquids, but we do count gases and Aqueous compounds. When we determine the KSP or the solubility of bonus constants, we don't count this guy or the other guy. We only count these two guys.