id	keyword
easat-8174	thinking
easat-8174	students
easat-8174	materials
easat-8174	science
easat-8174	learning
easat-8174	vol
easat-8174	education
easat-8174	teaching
easat-8174	test
easat-8174	case
easat-8174	cbl
easat-8174	content