(Soap curd) may change a ph of skin.Logical formLearned from2 sentences. A ph may undergo a development.Logical formLearned from2 sentences. Information can be about phs.Logical formLearned from2 sentences. Phs may produce results.Logical formLearned from2 sentences. Ph can be in water.Logical formLearned from2 sentences. A group may have ph.Logical formLearned from2 sentences. Phs can be controlled.Logical formLearned from2 sentences. An influence of ph may be investigated.Logical formLearned from2 sentences. A ph may pertain-to a sludge.Logical formLearned from2 sentences. A ph may pertain-to a solution.Logical formLearned from2 sentences. A person may see phs.Logical formLearned from2 sentences. A ratio may depend on a ph of sediments.Logical formLearned from2 sentences. A ph may pertain-to sediments.Logical formLearned from2 sentences. An amount of phosphate may depend on a ph of a system.Logical formLearned from2 sentences. (Vegetation biomas) may and (soil ph).Logical formLearned from2 sentences.