Ph may drop.Logical formLearned from7 sentences. Soils can be constituted-of-or-filled-with ph.Logical formLearned from7 sentences. A ph can be favorable.Logical formLearned from7 sentences. Ph may decrease.Logical formLearned from7 sentences. A (ph value) can be high.Logical formLearned from7 sentences. A ph can be preferred.Logical formLearned from7 sentences. (Ph levels) can be high.Logical formLearned from7 sentences. A ph may undergo maintenance.Logical formLearned from7 sentences. A function can be constituted-of-or-filled-with phs.Logical formLearned from6 sentences. A ph may be controlled.Logical formLearned from6 sentences. Phs can be elevated.Logical formLearned from6 sentences. Ph may undergo a use.Logical formLearned from6 sentences. A ph can be familial.Logical formLearned from6 sentences. Substances can be with a ph.Logical formLearned from6 sentences. Phs may pertain-to blood.Logical formLearned from6 sentences.