id	keyword
american_scientific_journal-5390	samples
american_scientific_journal-5390	standard
american_scientific_journal-5390	analysis
american_scientific_journal-5390	ctod
american_scientific_journal-5390	table
american_scientific_journal-5390	astm
american_scientific_journal-5390	test
american_scientific_journal-5390	engineering
american_scientific_journal-5390	research