@relation Data

@attribute Country {France,Spain,Germany}
@attribute Age numeric
@attribute Salary numeric
@attribute Purchased {No,Yes}

@data
France,44,72000,No
Spain,27,48000,Yes
Germany,30,54000,No
Spain,38,61000,No
Germany,40,?,Yes
France,35,58000,Yes
Spain,?,52000,No
France,48,79000,Yes
Germany,50,83000,No
France,37,67000,Yes