id	keyword
american_scientific_journal-4127	sea
american_scientific_journal-4127	black
american_scientific_journal-4127	georgia
american_scientific_journal-4127	sediment
american_scientific_journal-4127	water
american_scientific_journal-4127	scientific
american_scientific_journal-4127	rivers
american_scientific_journal-4127	sulfide
american_scientific_journal-4127	hydrogen