id	keyword
dpj1-239	teacher
dpj1-239	pupils
dpj1-239	learning
dpj1-239	learning material
dpj1-239	dialogic
dpj1-239	pedagogy
dpj1-239	question
dpj1-239	relationship
dpj1-239	new
dpj1-239	saitou
dpj1-239	learning topic
dpj1-239	lessons
dpj1-239	bakhtin
dpj1-239	teacher kiyotaka
dpj1-239	knowledge
dpj1-239	answer