id	keyword
american_scientific_journal-4544	water
american_scientific_journal-4544	system
american_scientific_journal-4544	supply
american_scientific_journal-4544	area
american_scientific_journal-4544	study
american_scientific_journal-4544	mandalay
american_scientific_journal-4544	city
american_scientific_journal-4544	solutions
american_scientific_journal-4544	utility
american_scientific_journal-4544	water supply
american_scientific_journal-4544	pricing
american_scientific_journal-4544	supply system
american_scientific_journal-4544	nrw
american_scientific_journal-4544	engineering