id	keyword
american_scientific_journal-3815	dosage
american_scientific_journal-3815	flakes
american_scientific_journal-3815	washing
american_scientific_journal-3815	pet
american_scientific_journal-3815	percent
american_scientific_journal-3815	pcrpet
american_scientific_journal-3815	soda
american_scientific_journal-3815	contamination
american_scientific_journal-3815	detergent
american_scientific_journal-3815	recycling