id	keyword
american_scientific_journal-7661	fabric
american_scientific_journal-7661	sun
american_scientific_journal-7661	gravity
american_scientific_journal-7661	system
american_scientific_journal-7661	planets
american_scientific_journal-7661	theory
american_scientific_journal-7661	fabric gravity
american_scientific_journal-7661	universe
american_scientific_journal-7661	earth
american_scientific_journal-7661	matter
american_scientific_journal-7661	energy
american_scientific_journal-7661	mass
american_scientific_journal-7661	gravitational
american_scientific_journal-7661	force
american_scientific_journal-7661	objects
american_scientific_journal-7661	orbit
american_scientific_journal-7661	velocity