15. The neural network according to claim 13, wherein said data input layer, said hidden layer and said second output layer each have connection weights between respective neuron devices.
13. A neural network comprising: a neuron device network having a data input layer, a hidden layer connected to said data input layer, and an output layer connected to said hidden layer, said output layer comprising a first output layer and a second output layer; learning means in said neuron device network for learning about data having a plurality of first vector rows representing a definite meaning, said learning means inputting said plurality of first vector rows to said data input layer, inputting second vector rows as a first instructor signal to said first output layer and inputting said definite meaning as a second instructor signal to said second output layer; inputting means for inputting said plurality of first vector rows to said data input layer of said neuron device network; and outputting means for outputting output signals of said second output layer based on input of said plurality of first vector rows by said inputting means.