id	keyword
mkg-837	smear
mkg-837	layer
mkg-837	root
mkg-837	canal
mkg-837	leaf
mkg-837	betel
mkg-837	infusion
mkg-837	betel leaf
mkg-837	walls
mkg-837	smear layer
mkg-837	groups
mkg-837	leaf infusion
mkg-837	irrigation
mkg-837	concentration