id	keyword
american_scientific_journal-1897	working
american_scientific_journal-1897	fluid
american_scientific_journal-1897	energy
american_scientific_journal-1897	temperature
american_scientific_journal-1897	expansion
american_scientific_journal-1897	volume
american_scientific_journal-1897	thermal
american_scientific_journal-1897	power
american_scientific_journal-1897	piston