id	keyword
american_scientific_journal-3997	water
american_scientific_journal-3997	equation
american_scientific_journal-3997	pipe
american_scientific_journal-3997	dishwasher
american_scientific_journal-3997	spray
american_scientific_journal-3997	design
american_scientific_journal-3997	engineering
american_scientific_journal-3997	washing
american_scientific_journal-3997	research