id	keyword
flr-485	age
flr-485	school
flr-485	skills
flr-485	children
flr-485	schooling
flr-485	profiles
flr-485	sfon
flr-485	effects
flr-485	doi
flr-485	starting
flr-485	hannula
flr-485	factor
flr-485	early
flr-485	country
flr-485	learning
flr-485	years