id	keyword
american_scientific_journal-3760	tower
american_scientific_journal-3760	energy
american_scientific_journal-3760	engineering
american_scientific_journal-3760	costs
american_scientific_journal-3760	research
american_scientific_journal-3760	volume
american_scientific_journal-3760	radiation
american_scientific_journal-3760	plane
american_scientific_journal-3760	chimney