id	keyword
app01-4009	bike
app01-4009	battery
app01-4009	motor
app01-4009	system
app01-4009	bicycle
app01-4009	power
app01-4009	project
app01-4009	sharing
app01-4009	prague
app01-4009	electric
app01-4009	requirements
app01-4009	geopend