id	keyword
american_scientific_journal-7194	water
american_scientific_journal-7194	resistivity
american_scientific_journal-7194	basement
american_scientific_journal-7194	aquifer
american_scientific_journal-7194	research
american_scientific_journal-7194	journal
american_scientific_journal-7194	groundwater
american_scientific_journal-7194	engineering
american_scientific_journal-7194	area