Assertion: tank's system | /r/HasProperty | complete
Facets:
Source sentences:
text: The prototype of the new tank was displayed to a military commission on 21 June 1917; its mechanical systems were complete but its superstructure was added later, being represented on the prototype by a wooden mockup with a conical open turret and dummy gun.
text: Obviously technical problems led to this system being a complete disaster and the feature was not installed or required for 1975 models.