There is provided a generating apparatus that generates an estimation model for estimating an attribute of an unknown target, the generating apparatus including a training-data acquiring unit acquiring training data including an attribute of a known target, attributes of other targets related to the known target, and a plurality of sets of types of relations between the known target and the other targets and a training processing unit training, using the training data, on the basis of the attribute of the known target and a type of a relation between the known target and the unknown target related to the known target, an estimation model for estimating the attribute of the unknown target, a generating method using the generating apparatus, and a program used in the generating apparatus.