id	keyword
bjos-8642140	betel
bjos-8642140	tobacco
bjos-8642140	areca
bjos-8642140	nut
bjos-8642140	oral
bjos-8642140	chewing
bjos-8642140	cancer
bjos-8642140	quid
bjos-8642140	users
bjos-8642140	leaf
bjos-8642140	group