id	keyword
american_scientific_journal-4062	cost
american_scientific_journal-4062	energy
american_scientific_journal-4062	chp
american_scientific_journal-4062	heat
american_scientific_journal-4062	gbp
american_scientific_journal-4062	total
american_scientific_journal-4062	electricity
american_scientific_journal-4062	annum
american_scientific_journal-4062	co2