id	keyword
ejop-9519	robot
ejop-9519	social
ejop-9519	human
ejop-9519	distance
ejop-9519	effect
ejop-9519	assistant
ejop-9519	reference
ejop-9519	point
ejop-9519	psychology
ejop-9519	participants
ejop-9519	estimation
ejop-9519	asymmetry