Assertion: tank's engine | /r/ObjectUse | used for new series of medium panzers
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Source sentences:
text: In order to solve these issues, Wa Pruef 6 (the German armor design office which was part of the ordnance department) insisted that, for the new series of medium Panzers initially named ‘Verbesserten Neubau Fahrzeug’ (Improved New Construction Vehicle), a specially designed engine would be used.