(Ph levels) can be lowered.Logical formLearned from2 sentences. A ph may be kept.Logical formLearned from2 sentences. A ph may have an effect.Logical formLearned from2 sentences. A ph may denature proteins.Logical formLearned from2 sentences. A ph may pertain-to a nobleman.Logical formLearned from2 sentences. A ph of fresh water may vary.Logical formLearned from2 sentences. A color may change with ph.Logical formLearned from2 sentences. Species can be adaptable with phs.Logical formLearned from2 sentences. Ranges can be in ph.Logical formLearned from2 sentences. A soil may raise a ph of a soil.Logical formLearned from2 sentences. A ph of leather may finish.Logical formLearned from2 sentences. Arf-gap can be with phs.Logical formLearned from2 sentences. Phs may domain-contain protein.Logical formLearned from2 sentences. A ph may pertain-to a lysosome.Logical formLearned from2 sentences. A stomach may have a ph.Logical formLearned from2 sentences.