Abstract: A translation device includes: a determination unit that determines a translation range for translating a first chunk to be translated; a translation unit that translates the translation range; and an output unit that outputs a translation result by the translation unit. The determination unit adds, to the translation range, the first chunk and a second chunk that includes a verb corresponding to a word included in the first chunk and that is closer to a beginning of an original sentence than the first chunk when no verb is included in the first chunk.

Abstract: To easily construct a translation model environment in which the sentences of a plurality of second languages corresponding to a sentence of a first language can be generated. An internal state changing device 1 includes a change unit 13 configured to change an internal state that is a final hidden state of an encoder, in a translation model that is a learned model constituted by an encoder-decoder model, as the translation model for translating an original sentence that is a sentence of a first language into a translated sentence that is a sentence of a second language.