id	keyword
bibechana-18688	water
bibechana-18688	pollution
bibechana-18688	bangladesh
bibechana-18688	sources
bibechana-18688	water pollution
bibechana-18688	point
bibechana-18688	coal
bibechana-18688	waste
bibechana-18688	mallik
bibechana-18688	arefin
bibechana-18688	dhaka
bibechana-18688	river
bibechana-18688	bibechana
bibechana-18688	arman
bibechana-18688	rcost
bibechana-18688	land