id	keyword
mkg-45477	gic
mkg-45477	eep
mkg-45477	surface
mkg-45477	propolis
mkg-45477	roughness
mkg-45477	water
mkg-45477	dent
mkg-45477	group
mkg-45477	absorption
mkg-45477	study
mkg-45477	hardness
mkg-45477	glass