id	keyword
ap-5173	� �
ap-5173	model
ap-5173	data
ap-5173	prediction
ap-5173	ucg
ap-5173	mars
ap-5173	temperature
ap-5173	training
ap-5173	coal
ap-5173	process
ap-5173	value
ap-5173	variables
ap-5173	methods
ap-5173	gasification
ap-5173	underground
ap-5173	input
ap-5173	syngas
ap-5173	function
ap-5173	results
ap-5173	calorific
ap-5173	control
ap-5173	regression
ap-5173	c o