An (email address) may au ph.Logical formLearned from15 sentences. Ph may undergo determination.Logical formLearned from15 sentences. A soil may have a ph.Logical formLearned from14 sentences. A ph may pertain-to skin.Logical formLearned from14 sentences. A ph may pertain-to a paper.Logical formLearned from14 sentences. A decrease can be in ph.Logical formLearned from14 sentences. A (soil ph) can be low.Logical formLearned from14 sentences. Differences can be in ph.Logical formLearned from14 sentences. A person can be a ph.Logical formLearned from14 sentences. A person may earn a ph.Logical formLearned from14 sentences. A ph can be higher.Logical formLearned from14 sentences. Changes can be in ph.Logical formLearned from14 sentences. Phs can be varying.Logical formLearned from14 sentences. Ph may undergo measurements.Logical formLearned from14 sentences. A ph may pertain-to a world-city.Logical formLearned from14 sentences.