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先行 せんこう技術 ぎじゅつじゃなかった
senkōgijutsujanakatta

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Noun
, 
Da Copula

The past negative form of 先行技術

1. Wasn't prior art.; Wasn't existing technology.

Past/Perfective
, 
Negative

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先行技術じゃなかった

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