id	keyword
cet-15664	investment
cet-15664	green
cet-15664	capital
cet-15664	optimization
cet-15664	esg
cet-15664	allocation
cet-15664	sectors
cet-15664	graph
cet-15664	constraints
cet-15664	firm
cet-15664	returns
cet-15664	structure