id	keyword
american_scientific_journal-2306	n.d n.d
american_scientific_journal-2306	oils
american_scientific_journal-2306	vol
american_scientific_journal-2306	food
american_scientific_journal-2306	activity
american_scientific_journal-2306	journal
american_scientific_journal-2306	oregano
american_scientific_journal-2306	thyme
american_scientific_journal-2306	bacteria
american_scientific_journal-2306	plant